case the joint

[case the joint] {v. phr.}, {slang} 1. To study the layout of a place one wishes to burglarize.

The hooded criminals carefully cased the joint before robbing the neighborhood bank.

2. To familiarize oneself with a potential workplace or vacation spot as a matter of preliminary planning.

"Hello Fred," he said. "Are you working here now?" "No, not yet," Fred answered. "I am merely casing the joint."