policing
noun /pəˈliːsɪŋ/
  /pəˈliːsɪŋ/
 [uncountable]- the activity of keeping order in a place with police(用警察)维护治安;治安保卫 - community policing社区治安维护 
 
- community policing
- the activity of controlling an industry, an activity, etc. to make sure that people obey the rules(对行业、活动等的)监督,管理,检查 - the policing of legislation立法的监督 
 
- the policing of legislation