law: 24. Police officers to be deemed to be always on duty and to be liable to employment in any part of Delhi.-
  Every police officer not on leave or under suspension shall for all purposes of this Act be deemed to be always on duty and any police officer or any number or body of police officers allocated for duty in any part of Delhi may, if the Commissioner of Police so directs, at any time, be employed on police duty in any other part of Delhi for so long as the services of the police officer or number or body of police officers may be required in such other part of Delhi.