Not sure about the legality of suspending the license during investigation - that will vary from state to state. But regarding seizing your gun as evidence, I can tell you that YES, in most all, if not all, jurisdictions, the police theoretically have a legal right to, and will in fact, take your gun during the course of the investigation, however long they think that is. This rule is fraught with abuse as you might suspect, and police and federal and state agencies come in like bandits all the time and seize stuff indefinitely (like computers and papers) just to make life miserable for you and shut down your business, without even charging you with anything. Your recourse is to SUE THEM to get your day in court and let a judge decide whether the police have had enough time to investigate - often this is what people have to do to get their stuff back (unfortunately - it's quite expensive to hire a lawyer). If you're charged criminally, then you'll already have a lawyer anyway though. If you get your day in court, you will try to show that the police have had plenty of time to do whatever it is they need to do to collect evidence from the gun (dna samples, ballistics test, whatever), or if they are going to charge you, then they need to either charge you now, or give the gun back. If they charge you, they will keep the gun as physical evidence itself for the trial. As you might expect, if you don't sue, you may never see your property again (police will essentially steal it from you, or more technically, embezzle it - happens all the time), but you do have a legal right to your property back when the investigation is concluded. If you are then charged with and then convicted of a crime, you STILL have a right to your stuff back absent some specific applicable forfeiture law.
[This message has been edited by Futo Inu (edited June 27, 2000).]