Vladimir Krull, 37, was off-duty when he was arrested Tuesday in the Hunters Point section of Queens.
A $12,000 reward is being offered for information leading to an arrest and conviction in the attempted murder of a police officer and sergeant in Queens.
Police are looking for an unidentified Hispanic man who they said fired at a police sergeant and another office in Queens on Saturday.
Police in Jersey City on Monday were probing an incident last week in which a sergeant shot and killed a man who tried to attack him with a kitchen knife.
A New York City police sergeant was arrested this week, reportedly for putting a mechanism on his car that would prevent people from seeing his license plate.
A New York City police sergeant stood charged with harassment Wednesday, reportedly after pestering a woman with calls and text messages.