The Railway Protection Force Act,1957
Section 15. Officers and members of the Force to be considered always on duty and liable to be employed in any part of the Railways
(1) Every superior officer and member of the Force shall, for the purpose of this Act, be considered to be always on duty, and shall, at any time, be liable to be employed in any part of railways throughout India.
(2) No superior officer or member of the Force shall engage himself in any employment or office other than his duties under this Act.