On behalf of the National Institute of Justice (NIJ) and as part of the Priority Criminal Justice Needs Initia- tive, the RAND Corporation, in partnership with the Police Executive Research Forum, organized a workshop in May 2017 on Challenges with Law Enforcement Access to Digital Evidence Held in Remote Data Centers. Discussions focused on ambiguities in U.S. law and procedure, challenges associated with using the Mutual Legal Assistance Treaty (MLAT) process, issues stemming from inadequate cooperation between law enforcement and service providers (the companies and organizations providing remote storage, communication, and computing services), and technical issues related to evidence residing in the cloud.