I’ve had cops come around to check out what they could when I was living with roommates and we had all kinds of equipment that used lots of electricity. We actually got a letter from the power company telling us we were in the 99th percentile of residential power use and to consider how much money we could save if we lowered our electricity useage. I’m sure if the cops saw anything they could construe as evidence when they were snooping around they would then easily get a warrant and do a raid.