Technology in Criminal Justice Act of 2019 This bill sets forth initiatives to improve the capacity of law enforcement to utilize digital evidence in conducting criminal justice activities. Among other things, the bill does the following: establishes within the Department of Justice (DOJ) a new office—the Office of Digital Law Enforcement—to train, support, and prepare criminal justice personnel; requires DOJ to designate a federal entity to be the Center of Excellence for Digital Forensics; provides for a review of existing programs that provide training, education, and technical assistance to improve digital evidence capacity of criminal justice personnel; establishes a new program—a Law Enforcement Technology Support to State and Local Law Enforcement program—to facilitate the use of existing grant funds to improve the digital evidence capacity of law enforcement personnel; and establishes the Department of Justice Technology Policy Advisory Board to foster dialogue on policy issues.