Background Check Failure

"Comprehensive background check policy and firearm background checks in three US states" in Injury Prevention:

Results Background check rates increased in Delaware, by 22%–34% depending on the type of firearm, following enactment of its CBC law. No overall changes were observed in Washington and Colorado. Our results were robust to changes in the comparison group and statistical methods.

Wintemue, long-time gun ban advocate, is one of the authors.