The transition to a global Internet economy has been accompanied by a significant change in the nature of law enforcement activity. Evidence that formerly was available within the boundaries of a single jurisdiction and could be collected through the operation of domestic law now is often collected, stored, and processed globally by transnational companies. As a result significant potential exists for the disruption of law enforcement activities because those who hold relevant evidence may be subject to conflicting legal obligations, unilateral actions by a single jurisdiction, and significant economic pressures. Authored by experts within The Chertoff Group, Law Enforcement Access to Data in the Cloud Era outlines the scope of the problem and surveys existing technical, legal, and policy conflicts. While it does not endorse a single solution, this paper identifies potential responses to the changing dynamic.