law: Official Secrets Act, 1923 
  2. Definition 
  In this Act, unless there is anything
  
  repugnant in the subject or context,-
  (1) any reference to a place belonging to
  
  Government includes a place occupied by any department of the Government,
  
  whether the place is or is not actually vested in Government;
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  (2) expressions referring to communicating or
  
  receiving include any communication or receiving, whether in whole or in part,
  
  and whether the sketch, plan, model, article, note, document, or information
  
  itself or the substance, effect or description thereof only be communicated or
  
  received; expressions referring to obtaining or retaining any sketch, plan,
  
  model, article, note or document, include the copying or causing to be copied
  
  of the whole or any part of any sketch, plan, model, article, note, or document;
  
  and expressions referring to the communication of any sketch, plan, model,
  
  article, note or document include the transfer or transmission of the sketch,
  
  plan, model, article, note or document;
  (3) "document" includes part of a
  
  document;
  (4) "model" includes design, pattern
  
  and specimen;
  (5) "munitions of war" includes the
  
  whole or any part of any ship, submarine, aircraft, tank or similar engine,
  
  arms and ammunition, torpedo, or mine intended or adapted for use in war, and
  
  any other article, material, or device, whether actual or proposed, intended
  
  for such use;
  (6) "Office under Government"
  
  includes any office or employment in or under any department of the Government
  
  6[***];
  (7) "photograph" includes an
  
  undeveloped film or plate;
  (8) "prohibited place" means-
  (a) any work of
  
  defense, arsenal, naval, military or air force establishment or station,
  
  mine,   minefield, camp, ship or aircraft belonging to, or occupied
  
  by or on behalf of, Government, any military telegraph or telephone so belonging
  
  or occupied, any wireless or signal station or office so belonging or occupied
  
  and factory, dockyard or other places so belonging or occupied and used for the
  
  purpose of building, repairing, making or storing any munitions of war, or any
  
  sketches, plans, models or documents relating thereto, or for the purpose of
  
  getting any metals, oil or minerals of use in time of war;
  (b) any place not
  
  belonging to Government where any munitions of war or any sketches, models,
  
  plans or documents relating thereto, are being made, repaired, gotten or stored
  
  under contract with, or  with any person on behalf of, Government, or
  
  otherwise on behalf of Government;
  (c) any place
  
  belonging to or used for the purpose of Government which is for the time being
  
  declared by the Central Government, by notification in the Official Gazette, to
  
  be a prohibited place for the purposes of this Act on the ground that
  
  information with respect thereto, or damage thereto, would be useful to an
  
  enemy, and to which a copy of the notification in respect thereof has been
  
  affixed in English and in the vernacular of the locality;
  (d) any railway, road,
  
  way or channel, or other means of communication by land or water(including any
  
  works or structures being part thereof or connected therewith) or any place
  
  used for gas, water or electricity works or other works for purposes  of a
  
  public character, or any place where any munitions of war or any sketches,
  
  models, plans, or documents relating thereto, are being made, repaired, or
  
  stored otherwise than on behalf of Government, which is for the time being
  
  declared by the Central Government, by notification in the Official Gazette, to
  
  be a prohibited place for the purposes of this Act on the ground that
  
  information with respect thereto, or the destruction or obstruction thereof, or
  
  interference therewith, would be useful to an enemy, and to which a copy of the
  
  notification in respect thereof has been affixed in English and in the
  
  vernacular of the locality;
  (9) "sketch" includes any photograph
  
  or other mode of representing any place or thing; and
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  (10) "Superintendent of Police"
  
  includes any police officer of a like or superior rank, and any person upon
  
  whom the powers of a Superintendent of Police are for the purposes of this Act
  
  conferred by Central Government 8[***]