National Instant Criminal Background Check System

The National Instant Criminal Background Check System (NICS) is a computerized database used by licensed firearm dealers in the United States to quickly determine whether a prospective buyer is legally eligible to purchase a gun. When someone applies to buy a firearm, the dealer checks NICS, which searches federal and state records for criminal history, mental health adjudications, and other disqualifying factors. This process helps ensure that prohibited individuals, such as convicted felons or those with certain mental health issues, do not acquire firearms, promoting public safety while respecting legal rights.