Safer Officers and Safer Citizens Act of 2017 This bill amends the Omnibus Crime Control and Safe Streets Act of 1968 to authorize the Department of Justice's Bureau of Justice Assistance to award matching grants to states, local governments, and Indian tribes to purchase body-worn cameras. The Bureau of Justice Assistance must give preference to grant applications from jurisdictions that: (1) have comprehensive policies and procedures related to implementation of a body-worn camera program, (2) have high percentages of officers without access to body-worn cameras, (3) have violent crime rates above the national average, and (4) agree to submit metrics on the use of body-worn cameras. As an offset, the bill allows the General Services Administration to identify and dispose of (i.e., sell or demolish) excess federal property.