The Police Department stuck to the original timeline despite calls in recent months to accelerate the rollout of the new guidelines, seen by some as a way to protect immigrants living in New York illegally from deportation amid aggressive new policies from the Trump administration.

The department’s new rules lay out exceptions: Officers will not give a new civil summons to someone who has “three or more unanswered civil summonses” in the past eight years. The civil option would also not be used if the person has two or more felony arrests in the last two years or is on parole or probation. (The city developed a system to help officers keep track of civil offense recidivists.)

“In the exceptions, you can see lurking the administration’s unwillingness to let go of the broken-windows strategy that disproportionately affects communities of color,” said Councilman Rory Lancman, who has advocated deeper reforms. But he added that the new civil process was “a big step.”

At a briefing on Tuesday, Inspector Thomas Taffe, of the police commissioner’s office, said the new guidelines were consistent with broken-windows policing, and that he was confident they would not cause upticks in crime.

“The whole issue is that we don’t ignore the problem,” he said. “I don’t believe it’s going to affect crime in any way.”

The city estimates that about 100,000 people each year will be diverted from the criminal court and into a civil process run by the city’s Office of Administrative Trials and Hearings.

As of March, the agency had 245 full-time employees, an increase of seven people from last year, according to figures provided by the Independent Budget Office. The budget calls for 315 full-time positions and $9.3 million more in spending, an increase of nearly 25 percent since last fiscal year. (That does not include the hearing officers, who are part time, the agency said.)