The city's law department singled out the 15 gun shops after hiring private investigators who fanned out to dealers in the five states over the past several weeks.
Wearing hidden cameras, the investigators entered stores in teams of two and attempted "straw purchases," in which the buyer completes the paperwork and passes the background check, but later hands over the weapon to someone else who is not allowed to own a firearm.
Full Story: http://news.yahoo.com/s/ap/20060515/ap_on_re_us/gun_lawsuit_1
How the hell can the gun shop stop someone who legally (passing all checks) purchases a firearm from giving the firearm to someone else. The person who purchased it is liable for the firearm not the store. Once the firearm has been legally purchased the onus is on the purchaser at that point.
I smell a stinking rat!