According to the Atlanta mayor and DA, cops may only discharge their weapons if their sidearm is taken and is used against them. Even in this case they have to wait until the criminal takes three aimed shots at them. Stray bullets do not count as these pose no threat (they fly safely over the heads of officers).
The police union raised an issue with the new rules. Some officers had difficulty returning fire once they were allowed to under the new rules., Namely that their gun is already taken from them and fired at them three times by the time they are allowed to use it themselves for the first time.
Mayor Longbottom solved the issue by requiring all Atlanta officers to carry two sidearms. One is for the criminal to take, and one for the officer to defend him or herself.