1. Short title This Act may be cited as the Back the Blue Act of 2017 . 2. Protection of law enforcement officers (a) Killing of law enforcement officers (1) Offense Chapter 51 of title 18, United States Code, is amended by adding at the end the following: 1123. Killing of law enforcement officers (a) Definitions In this section— (1) the terms Federal law enforcement officer and United States judge have the meanings given those terms in section 115; (2) the term federally funded public safety officer means a public safety officer or judicial officer for a public agency that— (A) receives Federal financial assistance; and (B) is an agency of an entity that is a State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, American Samoa, the Commonwealth of the Northern Mariana Islands, or any territory or possession of the United States, an Indian tribe, or a unit of local government of that entity; (3) the term firefighter includes an individual serving as an official recognized or designated member of a legally organized volunteer fire department and an officially recognized or designated public employee member of a rescue squad or ambulance crew; (4) the term judicial officer means a judge or other officer or employee of a court, including prosecutors, court security, pretrial services officers, court reporters, and corrections, probation, and parole officers; (5) the term law enforcement officer means an individual, with arrest powers, involved in crime or juvenile delinquency control or reduction or enforcement of the laws; (6) the term public agency includes a court system, the National Guard of a State to the extent the personnel of that National Guard are not in Federal service, and the defense forces of a State authorized by section 109 of title 32