MAY CONTAIN MARKUP

By MARTÍN SÁNCHEZ JANKOWSKI

The overall goal of the research in this book was to understand gang phenomenon in the United States. In order to accomplish this goal, the author investigated gangs in different cities in order to understand what was similar in the way all gangs behaved and what was idiosyncratic to certain gangs. The research for this book took place over ten years and five months from 1978 to 1989 and will give the reader a comprehensive overview of gang behavior in the United States in that time period. 

Berkeley. U.C. Press. 1991. 388p.

MAY CONTAIN MARKUP

BY FRANK GRAZIANO

Providing an account of political repression in Argentina, this book takes as its theme the intersection of religion, violence and psychosexuality as they relate to the desire for power and to the myths and rituals manifesting that desire.

Avalon Publishing, Jun 4, 1992 , 328 pages

MAY CONTAIN MARKUP

BY DAVID S. WALL

Looking at the full range of cybercrime, and computer security he shows how the increase in personal computing power available within a globalized communications network has affected the nature of and response to criminal activities. We have now entered the world of low impact, multiple victim crimes in which bank robbers, for example, no longer have to meticulously plan the theft of millions of dollars. New technological capabilities at their disposal now mean that one person can effectively commit millions of robberies of one dollar each. Against this background, David Wall scrutinizes the regulatory challenges that cybercrime poses for the criminal (and civil) justice processes, at both the national and the international levels.

Polity, 2007, 276 pages

MAY CONTAN MARKUP

By Marcus Felson

Entertainingly written and a model for how theory develops from empirical evidence, the Second Edition of this popular book is the perfect supplementary text for introductory criminology courses. The book provides an insightful analysis of the "other side" of crime causation, examining how society encourages or inhibits crime in the routine activities of everyday life.

SAGE Publications, Apr 13, 1998, 240 pages

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By GAIL WILLIAMS O'BRIEN

On February 25, 1946, African Americans in Columbia, Tennessee, averted the lynching of James Stephenson, a nineteen-year-old, black Navy veteran accused of attacking a white radio repairman at a local department store. That night, after Stephenson was safely out of town, four of Columbia's police officers were shot and wounded when they tried to enter the town's black business district. The next morning, the Tennessee Highway Patrol invaded the district, wrecking establishments and beating men as they arrested them. By day's end, more than one hundred African Americans had been jailed. Two days later, highway patrolmen killed two of the arrestees while they were awaiting release from jail.

Drawing on oral interviews and a rich array of written sources, Gail Williams O'Brien tells the dramatic story of the Columbia "race riot," the national attention it drew, and its surprising legal aftermath. In the process, she illuminates the effects of World War II on race relations and the criminal justice system in the United States. O'Brien argues that the Columbia events are emblematic of a nationwide shift during the 1940s from mob violence against African Americans to increased confrontations between blacks and the police and courts. As such, they reveal the history behind such contemporary conflicts as the Rodney King and O. J. Simpson cases.

University of North Carolina Press, 1999, 334 pages

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By Katie Seidler

From prison interviews with violent offenders and a wealth of experience and research, psychologist Dr Katie Seidler explores the complex interaction between crime and culture. Featuring the voices of the offenders themselves, 15 convicted adult male violent offenders from various ethnic cultural communities explain their understanding, motivations and rationalisations for their actions and how these relate to questions of identity, community and responsibility within their cultural experience and values. In challenging current criminological theory, Dr Seidler suggests that offenders from group-oriented (collectivist) cultures offend for group-oriented reasons, whereas those from cultures prioritising individualism offend for individual reasons. This more nuanced understanding of crime and criminals within the context of culture adds significantly both to criminological theory, as well as providing suggestions for improvements to policing and offender management and rehabilitation within the criminal justice system.

Australian Academic Press, 2010

By Stewart Boiteux and Suzanne Poynton 

AIM To describe rates of offending by young people with disability, and identify factors associated with their first contact with the youth justice system in NSW. METHOD A birth cohort of young people with disability residing in NSW was identified using State and Commonwealth information on health and disability service contacts from a large linked administrative dataset. Rates of offending were compared for young people with and without disability. Logistic regression analysis was undertaken to examine factors associated with the initial offending contact for young people with disability in the birth cohort. Differences in offence types and court outcomes for young people with disability were compared with young people with no known disability. RESULTS Despite accounting for only 3.5% of the population, young people with disability comprised 7.7% of all young people who had at least one police caution, youth justice conference or court appearance before the age of 18 and 17.4% of those with at least one youth detention episode. On average, people with disability had their first contact with the NSW criminal justice system at an earlier age, had a higher frequency of contacts, and had a different profile of offence types compared to people without disability. Offenders with disability received diversionary outcomes under the Young Offenders Act 1997 (NSW) at a similar rate to offenders without disability, but for matters proceeding to court, young people with disability received section 32 and 33 dismissals under the (now repealed) Mental Health (Forensic Provisions) Act 1990 (NSW) at a much higher rate. For people with disability, factors such as a later age of initial contact with disability-related services, greater remoteness of residence, and frequency of child protection contact were strongly associated with the likelihood of having a police caution, youth justice conference or court appearance before the age of 18. CONCLUSION People with disability have higher rates of contact with the youth justice system than people without disability and are significantly overrepresented in the youth custody population.

(Crime and Justice Bulletin No. 254). 

Sydney: NSW Bureau of Crime Statistics and Research , 2023. 39p.

By Clare Ringland, Stewart Boiteux and Suzanne Poynton 

AIM To describe the proportion of people with disability in New South Wales who offend, and the proportion of offenders who have a disability, separately for young and adult offenders. METHOD Data were obtained for individuals in contact with the criminal justice system and/or specific disability support services between 1 January 2009 and 31 December 2018. For those who accessed these core disability support services (the “disability cohort”), we report frequencies and percentages relating to whether individuals had offending and/or custodial records during the 10-year period. Similarly, for the young and adult offender cohorts, we report frequencies and percentages relating to whether individuals had a disability, as per the disability cohort definition or a broader disability indicator. The following characteristics were also considered: age, sex, Aboriginality, type of disability (cognitive, psychosocial, physical), offence type (violent, domestic violence (DV) related, property), whether custodial episodes were sentenced episodes, and whether individuals were recorded as victims of crime during the same 10-year period. RESULTS Sixteen per cent of the disability cohort had a finalised matter (caution, youth justice conference, or court appearance) during the 10-year period; 5 per cent had a custodial episode. Across all offence types, rates were highest for those with psychosocial disability, particularly those with both cognitive and psychosocial disabilities. Rates were also higher for males (vs. females), for those aged 15–34 years (vs. <15 years and 35–64 years), for Aboriginal people, and for those recorded as victims of crime. Almost a quarter of young offenders were identified as people with disability (10% in the disability cohort), with rates of disability highest for DV offenders (42% identified with disability, 19% in the disability cohort). Similarly, 27 per cent of adult offenders were identified as people with disability (16% in the disability cohort), with highest rates of disability for property offenders (45% identified with disability, 25% in the disability cohort). Rates of disability were higher in Aboriginal offenders than non-Aboriginal offenders. Aboriginal offenders were also more likely than non-Aboriginal offenders to have been victims of crime during the period. For example, 90 per cent of Aboriginal female young offenders with disability were recorded as victims of crime during the period, versus 59 per cent of non-Aboriginal female young offenders with no identified disability. More than 2 in 5 young people and around 1 in 2 adults with sentenced custodial episodes were identified as people with disability.

CONCLUSION:  A significant proportion of young and adult offenders were identified as people with disability and many of these individuals had also been victims of crime. There is an urgent need for further disability focused research to identify opportunities for strengthened support and diversion for this vulnerable group

(Bureau Brief No. 164).

Sydney: NSW Bureau of Crime Statistics and Research, 2023. 22p

By Alana Cook

Over the past two decades, there has been a long-term decline in motor vehicle theft. Stolen vehicle numbers reached an historic low in September 2021 following two COVID-19 lockdowns, steadily increasing since then. In March 2023 the number of vehicles stolen in NSW was higher than any month in the previous six years and increased 21.3% year-on-year. This paper considers the increase in motor vehicle theft up to March 2023 focusing on where the increase is most pronounced, which vehicles are affected, and who appears to be responsible. Key features of the recent increase in incidents of motor vehicle theft include: • The increase in vehicle theft is not uniform across NSW. In a number of regional locations vehicle theft has shown strong growth and is now much higher than at any point in previous five years. This applies to New England and North-West, Richmond-Tweed, Far West and Orana, Mid North Coast, and Central West. In New England and North West, for instance, vehicle theft was 67% higher in the year to March 2023 compared with five years earlier and the number of vehicles stolen in March 2023 (n=91) was the highest since records began in 1995. • This contrasts with the pattern of vehicle theft in other parts of NSW, particularly Greater Sydney, where the volume of vehicles stolen still remains lower than prior to the pandemic. In these locations, increases seem to simply reflect recovery from the COVID-related crime fall. • Vehicles stolen in Regional NSW are more likely to be recovered than vehicles stolen in Greater Sydney. This suggests motor vehicle theft in regional locations may be more likely to be conducted opportunistically for joyriding and transport purposes. • Young people appear to be responsible for the increase in vehicle theft in Regional NSW with a 179% increase in legal actions against this group over the five years to March 2023. A significant, but smaller increase in young people proceeded against in Greater Sydney was also observed (up 52%). • Theft patterns vary by vehicle make and year of manufacture. In the year to March 2023: š The most frequently stolen vehicles were manufactured by Toyota, Holden, and Ford, all of which are very common vehicles. š The vehicle makes with the highest rate of theft were Holdens, Jeeps, and Land Rovers. š Common vehicle makes with the largest percentage increase in theft in the five years to March 2023 were Kias, Jeeps, Isuzus, Land Rovers, and Volkswagens. š Older vehicles are much more susceptible to theft than recent models. • The recent increase in vehicle theft is at least partially a bounce-back from the COVID-driven crime declines of 2020 and 2021 as pandemic restrictions eased. Another factor, however, particularly in certain regional communities, may be associated with reports of social media posts encouraging vehicle theft on the platform TikTok. 

(Bureau Brief No. 166). 

Sydney: NSW Bureau of Crime Statistics and Research 2023. 11p

By Michael Townsley & Benjamin Hutchins Griffith Criminology Institute

This Study is the second overview produced by the Profit Protection Future Forum into the ANZ retail crime landscape.

The 2022 Australia and New Zealand Retail Crime Study is the second overview produced by the Profit Protection Future Forum into the ANZ retail crime landscape.

The first study (published in 2019) provided needed regionally relevant intelligence into hot products, popular offending methods, and sector-level estimates of loss types.

This second study not only continues this focus and considers changes during the intervening period. As everyone is aware, the last four years have witnessed considerable and unpredictable changes. COVID-19 disruptions, staff shortages, strained supply chains, and greater online transaction volumes have all shaped the opportunity surface for the commission of criminal activity, be it organised retail crime groups or impulsive amateurs.

Profit Protection (AUS) and Washington, DC: National Retail Federation, 2023. 35p.

By The National Retail Federation

Retail crime, violence and theft continue to impact the retail industry at unprecedented levels. The effects of these criminal acts are not isolated to large national brands or large metropolitan cities. Daily media reports show that no business is immune, and these issues touch retailers of all segments, sizes and locations across the United States. The National Retail Federation’s National Retail Security Survey, now in its 32nd year, surveys loss prevention (LP) and asset protection (AP) professionals throughout the retail industry to capture data about risks, threats and vulnerabilities from the previous fiscal year, as well their forward-looking priorities. The study also asks about retailers’ loss prevention and asset protection programs. For the second year in a row, the study was conducted in partnership with the Loss Prevention Research Council. Shrink or shrinkage is the measurement of losses calculated by a retailer during a specific period of time, categorized across various means of retail loss. This year’s study found that the average shrink rate in FY 2022 increased to 1.6%, up from 1.4% in FY 2021 and in line with shrink rates seen in 2020 and 2019. When taken as a percentage of total retail sales in 2022, that shrink represents $112.1 billion in losses, up from $93.9 billion in 2021. While retail shrink encompasses many types of loss, it is primarily driven by theft, including organized retail crime (ORC). Theft – both internal and external – accounts for nearly two-thirds (65%) of retailers’ shrink. However, for some sectors, theft can represent more than 70% of overall shrink. While theft has an undeniable impact on retailer margins and profitability, retailers are highly concerned about the heightened levels of violence and threat of violence associated with theft and crime. Retailers’ top priority remains providing a safe workplace for associates and a safe shopping experience for customers. Eighty-eight percent of retailers report that shoplifters (overall) are somewhat more or much more aggressive and violent compared with one year ago. And those that specifically track the number of violent shoplifting incidents reported that they saw their number of shoplifting events involving violence increase by over one-third (35%) on average.  ORC, which is one of many types of retail theft, is another area where retailers are seeing higher levels of violence. Last year, 81% of respondents reported that ORC offenders had grown more violent. Compounding that this year, more than two-thirds (67%) of respondents said that they were seeing even more violence and aggression from ORC perpetrators compared with a year ago. Of course, not all crime occurs in person; retailers also reported increases in areas such as ecommerce fraud or phone scams to solicit gift cards or cash. While less common, sizeable minorities reported increases in delivery fraud; stolen goods being sold on third-party sites; return fraud; and loyalty fraud and abuse. As a result of this increasingly alarming crime landscape, retailers continue to make investments in personnel, budgets, technology and other resources to prevent theft and fraud. They also are partnering with law enforcement at federal, state and local levels. Despite these ongoing efforts, many retailers have been forced to take more drastic action, including reducing operating hours in some locations (45%), reducing/altering the availability of products in stores (30%), or even closing some locations (28%). In 2022, NRF successfully advocated Congress to pass the bipartisan INFORM Consumers Act as part of the omnibus spending package, which was signed into law in January 2023. Now in effect, the measure will help bring transparency to online marketplaces by requiring them to verify the identities of high-volume third-party sellers. Doing so will help curb the fencing of stolen merchandise and address the sale of counterfeit goods. Market transparency alone will not stop ORC, which is why NRF strongly supports the Combating Organized Retail Crime Act (H.R. 895/S. 140). The bipartisan legislation has been introduced in both the House and Senate and continues to gain co-sponsors. In addition to efforts in Congress, NRF has worked closely with federal agencies, state lawmakers, local law enforcement and news media across the country to draw attention to ORC. The effort has been successful, with at least 34 states passing ORC laws, as NRF continues to urge additional states to update the definition of ORC and adopt sufficient criminal penalties. 

Washington, DC: National Retail Federation, 2023. 24p  

By Alana Cook

As with many property crimes, incidents of retail theft fell significantly during the COVID-19 pandemic. Since October 2021, however, retail theft offences have been steadily increasing, up 47.5% year-on-year to June 2023. This paper considers the increase in retail theft up to June 2023 focusing on the regions where retail theft is increasing, what items is being stolen and from where, and who appears to be responsible. Findings show: • The sharp increase in retail theft following the removal of pandemic related restrictions has brought retail theft volumes back to equivalence with pre-pandemic figures in both Greater Sydney and Regional NSW. The absence of an increase in theft reports beyond what was reported prior to the pandemic suggests the upward trend reflects a return to pre-pandemic offending levels. The trend does not support emerging external factors, such as the cost-of-living crisis, driving an increase in this offence. • The most frequently reported stolen item in retail theft is liquor, including bourbon, whiskey, and vodka (stolen in 37% of incidents), followed by clothing (22%). Retail theft of personal items, such as perfume and cosmetics, has declined in the past five years (stolen in 13% of incidents). • Locations recording the biggest increase in steal from retail incidents over the past five years are licenced premises and general wholesalers. Department or clothing stores and chemists have reported the largest decreases. • $440 was the average value of items stolen in retail theft incidents in 2022/23. • Almost half of all retail theft offenders are aged 30 to 39 years but after accounting for population, young people aged 14 to 17 years had the highest rate of involvement with NSW Police.

(Bureau Brief No. 168). 

Sydney: NSW Bureau of Crime Statistics and Research 2023. 10p.

By Adam Teperski and Stewart Boiteux

AIM To examine whether longer apprehended domestic violence orders (ADVO) are associated with changes in domestic violence (DV) offending and ADVO breaches. METHOD A dataset of 13,717 defendants who were placed on an ADVO after a DV incident between January 2016 and April 2018 was extracted from the NSW Bureau of Crime and Statistics and Research’s ADVO database. This included 10,820 defendants subject to a final 12-month order, and 2,897 defendants subject to a final 24-month order. We utilised an entropy balancing matching approach to ensure groups of defendants subjected to differing ADVO lengths were comparable and implemented an event study analysis to examine quarterly differences in offending outcomes in the three years after the start of the order. In doing so, we were able to examine relative differences in offending in the first 12 months (where both groups were subject to an ADVO), the second 12 months (where only the 24-month ADVO group were subject to an ADVO), and the third 12 months (where neither group were subject to an ADVO). RESULTS In the 12 to 24 month period, where ADVOs with a longer duration were active and shorter ADVOs were not, longer ADVOs were associated with increased breach offending and decreased DV offending. Specifically, in the 5th, 6th and 7th quarters after the beginning of a final order we observed 3.4 percentage points (p.p.), 4.1 p.p., and 2.3 p.p. increases in defendants breaching their ADVO, respectively. When considering baseline rates of breaching, this represents relative increases of 79% to 161%. In the 5th, 6th, and 7th quarters after the beginning of a finalised order, longer ADVOs were associated with respective 1.8 p.p., 2.0 p.p., and 3.1 p.p. decreases in DV offending, reflecting relative decreases in DV offending by 41% to 59%. We find no group differences in DV offending or breaches in the subsequent 12 months, when ADVOs for both groups had expired. While the study examined multiple factors related to both longer ADVO length and offending, we cannot exclude the possibility that unobserved factors may be influencing our results. CONCLUSION Relative to 12-month ADVOs, 24-month ADVOs were associated with an increase in the probability that an offender breaches the conditions of their ADVO, and a decrease in the probability that an offender commits a proven DV offence.

(Crime and Justice Bulletin No. 261). 

Sydney: NSW Bureau of Crime Statistics and Research., 2023. 34p.

By  Ziyang Lyua, Suzanne Poyntonb and Scott A. Sissona

AIM To quantify the effects of individual liquor licensing policies introduced in New South Wales (NSW) over the last decade on rates of violent crime. METHOD: The effects of individual state-wide policies on non-domestic assaults in NSW and additional local policies in the Sydney Central Business District Entertainment Precinct (CBD) and the Kings Cross Entertainment Precinct (KCP) from 2000 to 2019 were quantified using time series intervention models. We used a vector auto regression (VAR) model to create counterfactual datasets. These datasets were derived from proxy data outside the study area and helped predict potential assault outcomes without the policy implementation. RESULTS: The liquor licensing policies introduced by the NSW Government between 2008 and 2018 contributed to a significant decline in non-domestic assaults, both in Sydney and across NSW. By the end of 2019, non-domestic assaults had reduced by an estimated 19% in NSW, 45% in the Sydney CBD, and 84% in the KCP. Policies restricting late night (or 24-hour) trading of licensed premises and those targeting enforcement toward the highest risk venues contributed most to these declines. CONCLUSION: This research adds to the mounting evidence that restricting trading hours can substantially reduce the risks associated with acute alcohol intoxication and can be a cost-effective crime reduction strategy when combined with enforcement that targets the small number of premises that account for most of the harm.

(Crime and Justice Bulletin No. 263). 

Sydney: NSW Bureau of Crime Statistics and Research. , 2023. 27p.

By Coen Teunissen, Dana Thomsen, Sarah Napier and Hayley Boxall

This study investigated the risk factors for dating app and website users receiving requests from other users to facilitate child sexual exploitation and abuse (CSEA). It did so by analysing data from a large survey (n=9,987) of dating app and website users residing in Australia.

Dating app and website users who were younger, lived with children, were Indigenous or had a health condition (ie disability) were more likely than other users to be asked to facilitate CSEA. Further, respondents who were more frequent or active dating app/website users, who paid for the dating service or who linked their social media account to their dating profile were also more likely to receive requests for CSEA. These findings can assist online dating companies to implement new features and education messages that protect users and their children from harm.

Trends & issues in crime and criminal justice no. 686. Canberra: Australian Institute of Criminology. 2024. 18p

By Felix Soldner, Bennett Kleinberg, Shane D. Johnson

The popularity of online shopping is steadily increasing. At the same time, fake product reviews are published widely and have the potential to affect consumer purchasing behavior. In response, previous work has developed automated methods utilizing natural language processing approaches to detect fake product reviews. However, studies vary considerably in how well they succeed in detecting deceptive reviews, and the reasons for such differences are unclear. A contributing factor may be the multitude of strategies used to collect data, introducing potential confounds which affect detection performance. Two possible confounds are data-origin (i.e., the dataset is composed of more than one source) and product ownership (i.e., reviews written by individuals who own or do not own the reviewed product). In the present study, we investigate the effect of both confounds for fake review detection. Using an experimental design, we manipulate data-origin, product ownership, review polarity, and veracity. Supervised learning analysis suggests that review veracity (60.26–69.87%) is somewhat detectable but reviews additionally confounded with product-ownership (66.19–74.17%), or with data-origin (84.44–86.94%) are easier to classify. Review veracity is most easily classified if confounded with product-ownership and data-origin combined (87.78–88.12%). These findings are moderated by review polarity. Overall, our findings suggest that detection accuracy may have been overestimated in previous studies, provide possible explanations as to why, and indicate how future studies might be designed to provide less biased estimates of detection accuracy. 

PLoS ONE 17(12): 2022

By Sergi D. Bray , Shane D. Johnson and Bennett Kleinberg

Deepfakes’ are computationally created entities that falsely represent reality. They can take image, video, and audio modalities, and pose a threat to many areas of systems and societies, comprising a topic of interest to various aspects of cybersecurity and cybersafety. In 2020, a workshop consulting AI experts from academia, policing, government, the private sector, and state security agencies ranked deepfakes as the most serious AI threat. These experts noted that since fake material can propagate through many uncontrolled routes, changes in citizen behaviour may be the only effective defence. This study aims to assess human ability to identify image deepfakes of human faces (these being uncurated output from the StyleGAN2 algorithm as trained on the FFHQ dataset) from a pool of non-deepfake images (these being random selection of images from the FFHQ dataset), and to assess the effectiveness of some simple interventions intended to improve detection accuracy. Using an online survey, participants (N = 280) were randomly allocated to one of four groups: a control group, and three assistance interventions. Each participant was shown a sequence of 20 images randomly selected from a pool of 50 deepfake images of human faces and 50 images of real human faces. Participants were asked whether each image was AI-generated or not, to report their confidence, and to describe the reasoning behind each response. Overall detection accuracy was only just above chance and none of the interventions significantly improved this. Of equal concern was the fact that participants’ confidence in their answers was high and unrelated to accuracy. Assessing the results on a per-image basis reveals that participants consistently found certain images easy to label correctly and certain images difficult, but reported similarly high confidence regardless of the image. Thus, although participant accuracy was 62% overall, this accuracy across images ranged quite evenly between 85 and 30%, with an accuracy of below 50% for one in every five images. We interpret the findings as suggesting that there is a need for an urgent call to action to address this threat. 

Journal of Cybersecurity, 2023, 1–18 

By Michael J. Frith  , Kate J. Bowers  , Shane D. Johnson 

Introduction: In response to COVID-19, governments imposed various restrictions on movement and activities. According to the routine activity perspective, these should alter where crime occurs. For burglary, greater household occupancy should increase guardianship against residential burglaries, particularly during the day considering factors such as working from home. Conversely, there should be less eyes on the street to protect against non-residential burglaries. Methods: In this paper, we test these expectations using a spatio-temporal model with crime and Google Community Mobility data. Results: As expected, burglary declined during the pandemic and restrictions. Different types of burglary were, however, affected differently but largely consistent with theoretical expectation. Residential and attempted residential burglaries both decreased significantly. This was particularly the case during the day for completed residential burglaries. Moreover, while changes were coincident with the timing and relaxation of restrictions, they were better explained by fluctuations in household occupancy. However, while there were significant decreases in non-residential and attempted non-residential burglary, these did not appear to be related to changes to activity patterns, but rather the lockdown phase. Conclusions: From a theoretical perspective, the results generally provide further support for routine activity perspective. From a practical perspective, they suggest considerations for anticipating future burglary trends 

Journal of Criminal Justice, v. 82, 2022

By Shane D. Johnson and  Manja Nikolovska

Objectives Routine activity theory suggests that levels of crime are affected by peoples’ activity patterns. Here, we examine if, through their impact on people’s on- and off-line activities, COVID-19 restriction affected fraud committed on- and off-line during the pandemic. Our expectation was that levels of online offending would closely follow changes to mobility and online activity—with crime increasing as restrictions were imposed (and online activity increased) and declining as they were relaxed. For doorstep fraud, which has a different opportunity structure, our expectation was that the reverse would be true. Method COVID-19 restrictions systematically disrupted people’s activity patterns, creating quasi-experimental conditions well-suited to testing the effects of “interventions” on crime. We exploit those conditions using ARIMA time series models and UK data for online shopping fraud, hacking, doorstep fraud, online sales, and mobility to test hypotheses. Doorstep fraud is modelled as a non-equivalent dependent variable, allowing us to test whether findings were selective and in line with theoretical expectations. Results After controlling for other factors, levels of crime committed online were positively associated with monthly variation in online activities and negatively associated with monthly variation in mobility. In contrast, and as expected, monthly variation in doorstep fraud was positively associated with changes in mobility. Conclusions We find evidence consistent with routine activity theory, suggesting that disruptions to people’s daily activity patterns afect levels of crime committed both on- and off-line. The theoretical implications of the findings, and the need to develop a better evidence base about what works to reduce online crime, are discussed. 

Journal of Quantitative Criminology, 2022.

By Muhammad Amien Ibrahim, Samsul Arifin and Eko Setyo Purwanto

Social media moderation is a crucial component to establish healthy online communities and ensuring online safety from hate speech and offensive language. In many cases, hate speech may be targeted at specific gender which could be expressed in many different languages on social media platforms such as Indonesian Twitter. However, difficulties such as data scarcity and the imbalanced gender-based hate speech dataset in Indonesian tweets have slowed the development and implementation of automatic social media moderation. Obtaining more data to increase the number of samples may be costly in terms of resources required to gather and annotate the data. This study looks at the usage of data augmentation methods to increase the amount of textual dataset while keeping the quality of the augmented data. Three augmentation strategies are explored in this study: Random insertion, back translation, and a sequential combination of back translation and random insertion. Additionally, the study examines the preservation of the increased data labels. The performance result demonstrates that classification models trained with augmented data generated from random insertion strategy outperform the other approaches. In terms of label preservation, the three augmentation approaches have been shown to offer enough label preservation without compromising the meaning of the augmented data. The findings imply that by increasing the amount of the dataset while preserving the original label, data augmentation could be utilized to solve issues such as data scarcity and dataset imbalance.

United States, Journal Of Computer Science. 2023, 9pg