Not to mention the fact that the penalty for such an amount is on the order of 10 years in prison (of course, that depends on a lot of factors like where you live, how good your lawyer is, etc., but it's quite a large amount of cocaine.)
Not to mention the fact that the penalty for such an amount is on the order of 10 years in prison (of course, that depends on a lot of factors like where you live, how good your lawyer is, etc., but it's quite a large amount of cocaine.)
For example, you can't flush a scale down the toilet.
If we're talking low-level or mid-level dealers, chances are they have a quantity of pre-packaged amounts of their product on hand and maybe even a firearm or two. Unless they can quickly melt-down and/or liquify all of that stuff, it isn't going down any toilet pipe while the homeowner argues with the cops at the door about the status of a warrant.
They (the cops) need something to barter with. You're much more likely to get useful information from someone facing 10+ years than someone facing 1 year (6 months with good behavior) or probation. They want to find everything.
To elaborate on your own example though, pretty sure that even if a firearm is legally registered you can still get in trouble for having it around, especially loaded, in the context of selling illicit substances.
That is almost beside the point, though. How many dealers do you think are using registered firearms to protect their trade? Of that group, how many are registered to the dealer using it and not some random family-member or whatever?
I can't imagine a scenario in which finding a small percentage of the drugs wouldn't hurt the case though. If you can't find it then you can't charge them with possessing it.
In most of the US, and I suspect for most of the population, there is no such thing as registering guns (that would be akin to registering laser printers, especially those high capacity ones).
On the other hand it's illegal for a drug user to possess a firearm, 18 USC § 922(g): http://www.law.cornell.edu/uscode/text/18/922
(it's just that the average consumer doesn't know about it)
To the extent there's any tracking of printers, it would at most tell you which store it was sold from, there isn't any required serial number recording done at checkout (well, as of when I last bought a color printer in 2006).
What you're referring to would be akin to comparing a bullet found at the scene of a crime with one fired from a seized weapon, albeit easier; a comparison system. Much less of a privacy concern, without any required "registration" involved.
I'm sceptical. The police don't need to find 1 kg of cocaine, to find a bag with powder in and powder around the toilet should be sufficient.
The penalty for 1 oz and destroying evidence (if they can prove that) is nothing compared to the penalty for 1 kg.
They could actually make some actionable data for public good.