California penal code 16920 only provides a definition of "metal knuckles", and the lawmakers didn't see fit to define what "worn" actually means. CA penal code 21810 explains the illegalities of "metal knuckles". I guarantee you that the mere possession of "metal knuckles" is in fact a crime under CA pc 21810 even if the "metal knuckle" are in no way upon your person. They don't even need to be in your pocket.
Say for example a person were stopped for speeding in their car. The cop walks up to give them a ticket and sees a set of brass knuckles sitting on the dash board. If the car is registered to the driver, then the driver can be arrested for "possession" of "metal knuckles" under 21810, even though the knuckles are in no way touching his body. And that driver could expect to be convicted.
I'd like to make a few comments on the case of David V. mentioned earlier, because it is a scary one, and it offers a good learning tool on how the criminal justice system often works, and to show how even if you are eventually exonerated you can go through a lot of hell first before you come out the other side. I'd like to break down the case into what I consider to be significant points-
1. David V. was stopped by a cop for riding his bicycle without a helmet.
Now people often like to say "Cops have better things to do than hassle you over....". But in the case of David V. the cop clearly did not have better things to do. He actually stopped his car, AND got out of his car, over nothing more than a kid riding a bike without a helmet. Lesson there is- never underestimate a cops willingness to stop you over the most minor of violations.
2. David V. was arrested, handcuffed, and taken to jail, for possession of a bicycle foot peg (not attached to the bike).
People often say "The cops don't care what knife you're carrying as long as you aren't doing anything illegal...". But David V. was arrested for carrying nothing more than a bicycle foot peg.
3. The DA's office allowed the charge against David V. to stand. Over nothing more than a bicycle foot peg.
Don't count on your charges to be dropped, no matter how ridiculous they are. Prosecutors are in the business of getting convictions, not letting people go free.
4. The judge presiding over the case convicted David V. of possessing a deadly weapon (bicycle foot peg). Juveniles don't get jury trials.
5. The California Court of Appeals upheld David V.'s conviction.
Truly scary. And all of that over a bicycle foot peg being carried in ones pocket while riding a bike. The kid wasn't even using the peg as a weapon, nor was anyone's blood found on the peg. He was just carrying it in his pocket.
Fortunately, the California Supreme Court has some very intelligent people sitting on the bench and they overturned David V.'s conviction. But I'm sure that took a long time, and a lot of money, and caused an incredible amount of stress and aggravation for David V. and his family.
Now it could be said that the case of David V. is an extreme case, or maybe it's not. No one can possibly know how many people fall victim to the criminal justice system in such a manner, or worse, and the general public never hears about it. I've seen and heard (and heard from my attorney) enough horror stories over the years to convince me that such injustices, or similar, occur frequently.
Some people might think that my point of view, and my advice are overly cautious or paranoid. But I know from personal firsthand experience how the criminal justice system can screw you over, screw up your life, and cause you a great deal of pain, suffering, and financial expense. So I say- follow the law to the letter as best you can. And when the law is vague, err on the side of STAYING OUT OF JAIL. You don't want to learn the hard way how unjust the justice system can be.
And of course, when in doubt about the law consult an attorney. Don't just believe anything people say on the internet.
Peace

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