Applications for concealed carry permits have spiked in the District since a federal judge ordered the city to stop requiring gun owners to prove they have a "good reason" to carry a firearm in public, according to documents filed as part of an ongoing legal challenge to D.C. gun laws. Ten days after U.S. District Judge Richard Leon 's order blocked the city from enforcing a key provision of its gun laws, the Metropolitan Police Department had received 85 concealed carry permit applications - compared to the 61 applications it had received in the prior six months.