JMdict entry #1726920

1. noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru policing (an area, etc.) by oneself; protecting by oneself; vigilantism
2. noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru cautioning oneself; taking care; being careful
3. noun (common) (futsuumeishi) abbreviation local government police; municipal police
   see: 自治体警察