The denizens of Manhattan elected Mr. Vance to serve as District Attorney after decades of honorable and "no nonsense" service by his predecessor, Robert Morgenthau. Whether the tabloids agreed or the political winds blew in a particular direction made no difference to "the Boss." Subjectively, and we certainly can agree to disagree, Robert Morgenthau attempted to always do the "right thing." District Attorneys do not prosecute alleged offenders merely because they can, but because they should. If all of the facts as alleged by the New York Post are true - Ms. Graves was licensed in Tennesse to carry the firearm, she did not initially realize she possessed the weapon at Ground Zero, Ms. Graves attempted to turn in the weapon - and Ms. Graves is a registered nurse with no criminal history who was applying for a position at Brookhaven Memorial Hospital, this case is not one to hang a prosecutorial hat. No greater good would be served to slap down the accused with a criminal conviction whether it be for a misdemeanor or felony. Justice would not demand that a lapse of judgment should prevent a registered nurse from maintaining her license to practice or from coming to New York where her skills would be a much needed asset (frankly, property taxes might scare her and other skilled professionals away anyway). While the decisions to do the "right thing" may not be a popular one in this understandingly hostile firearm climate, Ms. Grave's weapon was not stolen or part of the illegal firearm trade.
Despite what law enforcement might think about sending a message to would be illegal firearm possessors in New York, a flexing of "District Attorney muscle" would arguably send the wrong message in this limited type of case. That is, if you possess a weapon in New York not realizing the law and that firearm is properly registered with a permit elsewhere, hide it and conceal it. Under no circumstance should you bring it to law enforcement. While not doing so could endanger the lives of police officers and regular residents, prosecutors will punish you for doing the "right thing" while they are unwilling to do the same.
If any of the above information or assumptions is incorrect, then a different analysis may very well be necessary when deciding how to prosecute this case. It could be, in fact, that a thorough and full prosecution is necessary. Otherwise, our leaders in law enforcement and elsewhere are elected and appointed to have courage and do the "right thing." Whether the appropriate outcome in this case occurs, and I am not insinuating that it will not, time will certainly tell.