Section 234(234)(a) in The Railway Protection Force Rules, 1987
(a)doing outside work requiring special courage, skill or initiative, such as -(i)the arrest of a criminal; or(ii)securing information leading to the detection of a crime or matters connectedtherewith; or(iii)making exceptionally good inquiries; or(iv)an encounter with a criminal in connection with protection and security of therailway property.