By Joanna R. Lampe

Federal law generally prohibits the production, distribution, and possession of marijuana for both medical
and recreational purposes. In April 2024, news outlets reported that the Drug Enforcement Administration
(DEA) planned to change the status of marijuana under the Controlled Substances Act (CSA) by moving
it from Schedule I to the less restrictive Schedule III. Such a move would relax some controls over
marijuana but would not immediately legalize medical or recreational use of marijuana under the CSA.
Notwithstanding the strict federal control of marijuana, in recent years, many states have repealed state
law criminal prohibitions on some marijuana-related activities, and medical and recreational cannabis
businesses now operate openly in some parts of the United States.
In response to the disparity between state and federal law, Congress has enacted appropriations legislation
prohibiting the Department of Justice (DOJ) from expending appropriated funds to prevent states from
implementing their own medical marijuana laws. Federal courts have interpreted the appropriations rider
to prohibit DOJ from bringing criminal drug prosecutions against certain persons and entities involved in
the state-legal medical marijuana industry, but they have differed as to the scope of conduct the rider
shields from prosecution.
This Legal Sidebar first outlines the legal status of marijuana under federal and state law. It then discusses
the medical marijuana appropriations rider and analyzes how federal courts have interpreted the
provision. The Sidebar closes with key considerations for Congress related to the appropriations rider and
the disparity between federal and state marijuana policy more generally.
Federal and State Marijuana Regulation
The plant Cannabis sativa L. and products derived from that plant have a number of uses and may be
subject to several overlapping legal regimes. In recent years, a significant divide has developed between
federal and state marijuana laws. On the federal side, the CSA imposes stringent regulations on the
cannabis plant and many of its derivatives. Activities involving controlled substances not authorized
under the CSA are federal crimes that may give rise to large fines and significant prison sentences.
Unless an exception applies, the CSA classifies cannabis and its derivatives as marijuana. Congress
classified marijuana as a Schedule I controlled substance when it enacted the CSA, reflecting a legislative

Washington, DC: Congressional Research Service, 2024. 5p.

By Megan Comfort, Jenn Rineer, Elizabeth Tibaduiza, and Monica Sheppard

The “pretrial process” refers to the events that happen between the time that one is suspected by law enforcement of violating the law and the time that charges are dismissed, the case is otherwise resolved, or the trial process begins. During the pretrial period, people are considered innocent under the law. The U.S. Supreme Court1 has stated, “In our society, liberty is the norm, and detention prior to trial or without trial is the carefully limited exception.” The only two constitutionally valid reasons for holding someone in jail during the pretrial period are (1) to prevent flight or (2) to prevent harm to people in the community. Judges make decisions every day about whether to detain or release people going through the pretrial process, as well as about what conditions of release may be needed to help people succeed. Pretrial release assessments are designed to inform their decisions. Unlike assessments that involve a clinician or other professional drawing on their subjective expertise to make a recommendation, actuarial pretrial release assessmentsa rely on mathematical processes. Using large data sets with information about people who previously went through the pretrial process, researchers identify factors related to appearing for court hearings and not being arrested again if released. The researchers then create a sequence of instructions for a computer to follow (called an algorithm) that uses these factors to calculate an estimated likelihood that a person will appear in court and remain arrest free while their case is being resolved. This calculation—referred to as a “score”—is provided to the judge as information to consider when making decisions about pretrial release. A person’s score is also often provided as information to other courtroom actors, such as prosecutors, defense attorneys, and pretrial services officers. When thinking about actuarial pretrial release assessments, it is important to understand the history of the criminal legal system in the United States, which is deeply rooted in the legacy of slavery. Read Race and the Criminal Justice System2 by the Equal Justice Initiative to learn more. No actuarial pretrial release assessment tool or instrument is considered standard. Numerous assessments have been developed, and they vary in terms of the factors and instructions entered in the algorithm. Some use factors that are available through criminal legal system records, such as whether someone has been arrested before or has previously missed a court date. Others include factors like whether someone has a job, is enrolled in a substance use treatment program, or has a place to live. This information is usually obtained by talking with the person who has been arrested. At the time of this writing, pretrial release assessments use algorithms that are created by humans as opposed to ones that are generated by machine learning or artificial intelligence (AI). It is possible that future assessments will rely on AI, which would raise a different set of issues to consider. The use of actuarial pretrial release assessments is growing across the United States. Often, they are an element of broader system change aimed at reducing or eliminating the use of cash bonds, which require people to post money to be released from jail. Judges may consider the actuarial pretrial release assessment score when deciding what conditions of release—for instance, electronic monitoring or mandatory check-ins with pretrial services—are appropriate for a person. In systems that retain money bond as a potential release condition, assessments are sometimes used to inform decisions about bond amounts, but the impact on release is lessened if people remain in jail because they cannot afford to pay their way out. Judges may also use the score as part of their decision about whether to keep someone in jail or release them while their case is pending

APPR Research Brief, April 2024. Research Triangle Park, NC: RTI International, 2024. 5p.