Legal Question in Criminal Law in California

It depends on the charge. If it was a misdemeanor, the charges have to be filed within a year of your arrest.

If it was a felony, or a "wobbler" that can be filed as a misdemeanor or a felony, the statute of limitations is at least three years -- possibly more, depending on the specific charge.

Mr. Marshall is correct. If you never get notice, you are home free. If you do, then your attorney can determine if the statute applies. If that happens, feel free to contact me.

It depends on the charge, as pointed out by Mr. Marshall. We're not trying to be rude, but there are almost a hundred different Penal Code sections involving criminal liability for "guns." You are going to have to be more specific.