Do cops, upon finding a grove of the sweet mary jane, set up cameras, etc. instead of just uprooting the ****?

i gotta knbow this, man. i can only imagine thta the pigs would set up a trap to catch the man with a green thumb before ruinen his garden. and i want real information rather than hunchs and ****. im talkin somethin i can rely on, plus a little detail. get on the ganja bus!