Agency-authorized illegal entry, 6 letters
Break-in for snooping, 6 letters
Bug planter's break-in, 6 letters
Illegal entry, 6 letters
Illegal entry by a government agent, 6 letters
Illegal search, in slang, 6 letters
Spook's break-in, 6 letters
Spook's illegal entry, 6 letters
Spy's break-in, in slang, 6 letters