it depends.
they don't weigh it on the same scale you use. that much is a lie. they have their own well-calibrated scales for that.
to pump up the weight they weigh the whole plant, wet, sometimes chopped, sometimes the rootball n soil too. so a plant that might yield you 1 oz could be 2-5 lbs in their eyes.
on NORML's website check to see if your state measures mj by weight, or by specific amount of plants. you said weight earlier, so if the calvalry comes in they'll weigh the whole plant.
they'll also confiscate any cash you have in the house, even if you can prove it came from a legitimate source. you'll prob. waste mre money on attorney fees than from what they confiscated to get it back so consider cash gone.
that's why taking care of trash is important, if you have leaf trimmings lying around, uprooted males, etc. they'll weigh that as if it were bud too.....