A federal judge refused to block implementation of Maryland's new gun control law Tuesday.
U.S District Judge Catherine Blake in Baltimore on Tuesday said plaintiffs in two lawsuits failed to show that implementation would cause irreparable harm to prospective gun buyers and gun shops.
Blake refused to grant an emergency stay of the law. The plaintiffs' attorneys said they would continue to seek a court order to block the measures.
The law took effect Tuesday.
The opponents object to the addition of 45 gun types to a list of banned assault weapons. They say that provision, and one limiting magazines to 10 bullets, amount to an unconstitutional ban on commonly used firearms.
They also object to a measure requiring people to be fingerprinted and licensed before buying a handgun. The plaintiffs say that provision will add to a huge backlog of post-purchase background checks and effectively prevent people from buying guns.
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