If you grow on your own land, KEEP YOUR TOOLS AND FERTILIZER AT ANOTHER LOCATION!
Then you can claim it was someone else, and when (hopefully *if*) they search the permises, the lack of cannabis-specific ferts will support that... with the ability to fingerprint chemicals, whatever ferts you use on your cannabis should not be around the house, even if you have a real garden of herbs and veggls, use totally different ferts on them.

The way to get around this is to grow on land owned by the government, railroad, or a utility company. Then you put no one else in danger, and your own property is safe.

IMHO it's a better idea to grow INDOORS at home and OUTDOORS on RR land.