Actualy, the driver of the vehicle is responsible for EVERYTHING in the vehicle so if there is a passenger, the driver is still responsible for it unless the passenger says it was thiers. Also, if you are looking at keeping a firearm in your car, Get one of the Gun Vaults and you can bolt it in the trunk or somewhere else and that is a great way to store your firearm in your car and have it locked up. Just my 2 cents.