pound a beat

verb2

1. •
   Of a police officer, to walk a regular route.

   • Assigned to the riverfront precinct for years, he pounded a beat of backstreets and dockyards.
2. •
   Of a journalist, to cover a regular beat, reporting on an assigned category of news.

   • Assigned to the city desk for years, she pounded a beat of city council and mayoral activity, police blotters, and the like.