DAPS provides researchers, the news media, policymakers and the public with accurate, detailed information about important drug control, treatment and related policies. DAPS is an application of the practice of “policy surveillance,” the systematic, scientific tracking of laws of public health significance. DAPS is built on a scientific approach to legal research, and a state of the art platform for coding and publishing legal data. The coding process used at DAPS follows the guidelines set down in Anderson et al.,Measuring Statutory Law and Regulations for Empirical Research, in Wagenaar and Burris eds, Public Health Law Research: Theory and Methods ( John Wiley & Sons; 2013). Topics are selected and coding schemes developed under the guidance of subject-matter experts; redundant research and coding processes are used to maintain accuracy; transparency is provided by detailed research protocols that are published with every dataset. The platform, MonQcleSM is the only software system designed exclusively for collecting, coding and publishing statutory and regulatory data. In the current version of DAPS, the MonQcleSM supports interaction with and downloading of legal data built by DAPS staff. In future versions, DAPS users will have the option of using the MonQcleSM to create their own custom versions of DAPS datasets, making DAPS a collaborative legal data lab. DAPS is being developed by Legal Science, LLC, in collaboration with legal experts at Temple University’s Center for Public Health Law Research. The work is funded by a contract with NIDA (#HHSN271201500081C).