Andrew Gilbert, 27, said he had just gotten off the train on his way to work at around 8:45 a.m. on Tuesday when he approached two officers at the Eighth Street subway station in Manhattan who were not wearing masks and asked them to put them on, in accordance with the rules…

“The male officer sort of started playing dumb with me, saying, like, ‘I can’t hear what you’re saying through your mask,’” Mr. Gilbert said on Wednesday.

The back-and-forth continued for about a minute, Mr. Gilbert said, before the officer shoved him about 80 feet backward and pushed him out of the exit door. “If you’re not going to ride the train, just get out,” Mr. Gilbert said the officer told him…

Mr. de Blasio noted that he had not seen the full lead-up to the interactions. “But I saw the officers not wearing their masks in the subway, that’s evident. That’s unacceptable,” he said. “We’ve given this instruction a thousand times: If you’re going to be in law enforcement, you actually have to participate in following the law.”