BALTIMORE — Baltimore City School Police recovered a "ghost" gun at Forest Park High School Thursday afternoon.
This comes one day after the city filed a lawsuit against national gun manufacturer Polymer80, Inc.
It requires them to stop the flow of "ghost guns" into the Baltimore.
The Maryland General Assembly passed a bill banning "ghost" guns this year.
The law prohibits anyone from buying, selling or transferring an unfinished firearm frame receiver that's missing a serial number. And requires anyone who owns a firearm without a serial number to have one imprinted on it by March of next year.