law: 7. Destruction of photographs and records of measurements, etc., on acquittal.
  Where any  person who, not having been previously convicted of an offence punishable with rigorous imprisonment  for a term of one year or upwards, has had his measurements taken or has been photographed in  accordance with the provisions of this Act is released without trial or discharged or acquitted by any  court, all measurements and all photographs (both negatives and copies) so taken shall, unless the court or  (in a case where such person is released without trial) the Districts Magistrate or Sub-Divisional Officer  for reasons to be recorded in writing otherwise directs, be destroyed or made over to him.