You can't. Only a LEO or LEA can.
Gun store.
Once can purchase a hand gun safe from a variety of different places. Some large gun stores sell hand gun safes. Stores specializing in security will also be able to help.
Hand gun - 21; long gun - 18
At a minium, 21 for a hand gun and 18 for a long gun.
21
No
unless you where gloves or something over your hand, your fingerprint WILL be on the gun and if you shot it GSR will be on your hand
To purchase a gun, no. Anyone can purchase a gun as long as they meet the age requirement, aren't a felon, and don't have any disqualifying misdemeanors.
In the United States, yes.
18 for long gun, 21 for hand gun
The question is to broad and vague to be answered. You have to define what it is you are going to do with the hand gun, i.e., hunting, target shooting, collecting, self defense.
18 or 21 depending on if you are buying long gun or hand gun ammunition