Want this question answered?
You will have to contact the California Department of Justice for a current, legal and correct answer.
I saw a firearm.
When registering a firearm in California you will need to submit a Firearm Ownership Report Application. The Department of Justice Bureau of Firearms staff can access your circumstances and determine if your application should be accepted, rejected, or denied.
marijuana and illegal firearm
Police department
For the most part, no, but there may be exceptions. I would suggest asking a lawyer who specializes in firearm law.
No. You can own a firearm.
Criminal offenses do not go away.
It is highly unlikely that you will ever be able to be employed by a law enforcement agency as a sworn officer. An expungement is not a pardon and does not remove your felony conviction from the 'official' record, only from the publicly accessible section of your criminal record. As a convicted felon, regardless of whatever your home state does, federal law (USC Title 18) prohibits you from ever owning a firearm.
He brandished a firearm.
No
The serial number is related to the brand, which can be related to the store where the criminal bought it, which can lead to finding the criminal.