The term "peace officer" means any sheriff, police officer, federal
law enforcement officer, or any other law enforcement officer whose
duty it is to enforce and preserve the public peace.
Every United States Marshal, Marshals Service deputy or other federal
law enforcement officer who is employed full-time as a law enforcement
officer by the federal government, who is authorized by federal law to
conduct any investigation of, and make any arrest for, any offense in
violation of federal law shall have the same authority, and be
empowered to act, as peace officers within the State of Oklahoma in
rendering assistance to any law enforcement officer in an emergency,
or at the request of any officer, and to arrest any person committing
any offense in violation of the laws of this state.