Any police officer who
         (a) without lawful authority or reasonable cause enters or searches, or causes to be entered or searched, any building, vessel, tent or place; or
         (b) vexatiously and unnecessarily seizes the property of any person; or
         (c) vexatiously and unnecessarily detains, searches or arrests any person; or
         (d) offers any unnecessary personal violence to any person in his custody; or
         (e) holds out any threat or promise not warranted by law,
shall, for every such offence, on conviction, be punished with imprisonment for a term which may extend to six months, or with fine which may extend to five hundred rupees, or with both.