Any police officer who -
- without lawful authority or reasonable cause enters or searches, or causes to be entered or searched any building, vessel, tent or place; or
- vexatiously and unnecessarily seizes the property of any person; or
- vexatiously and unnecessarily detains, searches or arrests any person; or
- offers any unnecessary personal violence to any person in his custody; or
- holds out any threat or promise not warranted by law,