Normally, I am not a fan of Federal solutions to state problems. I do, however, think that the public has a right to know when and how its police officers are using deadly force. Government should always be transparent when it uses force against its citizens.
That is why I think that police departments in New York and elsewhere should be required to report whenever a police officer uses lethal force against a citizen. They currently do not do this, and I think that a Federal law would be required to make it happen. Let the public that grants the police their powers decide whether or not that power has been wisely bestowed upon those officers.