private security officer

(A) means an individual other than an employee of a Federal, State, or local government, whose primary duty is to perform security services, full or part time, for consideration, whether armed or unarmed and in uniform or plain clothes (except for services excluded from coverage under this section if the Attorney General determines by regulation that such exclusion would serve the public interest); but

(B) does not include—

(i) employees whose duties are primarily internal audit or credit functions;

(ii) employees of electronic security system companies acting as technicians or monitors; or

(iii) employees whose duties primarily involve the secure movement of prisoners.