The phrase "cop routine" refers to the typical set of tasks and actions that police officers perform during their daily work. It includes duties like patrolling, investigating crimes, making arrests, and maintaining public safety. Full definition
This good cop bad cop routine of atheists posts as well as Christian posts. (religion.blogs.cnn.com)
The buddy cop routine is taken to the fresh setting of a high school, where they have to confront both a drug ring and their old social status in school. (oracleoffilm.com)
A classic interview technique is the old good cop, bad cop routine! (resumecentre.ca)