New look for Suffolk police after Long Island department sees slew of changes, promotions

Suffolk County police introduced new leadership Tuesday — promoting a roster of veteran officers to be the Long Island department’s new top brass.

The promotions have now reshaped the top of Suffolk law enforcement, with a new chief of the police department and chief of detectives, two upgraded inspectors, and a new deputy chief of patrol.

“This is a great day for the Suffolk County Police Department and every resident,” County Executive Ed Romaine told The Post about the promotions.

“We have extremely talented, extremely experienced, extremely knowledgeable people, and we try to reward those by promoting from within.”

The shake-up started at the very top, with longtime commander William Doherty elevated to chief of department — the highest-ranking sworn officer in Suffolk — set to oversee the day-to-day operations of the entire force.

From there, two other top ranks were also retooled, with Sean Beran taking the helm as chief of detectives, and Dave Regina stepping in as chief of patrol.

Suffolk police Commissioner Kevin Catalina said he has nothing but praise for the department’s new leaders — calling them “the best of the best.”

“I have no doubt [Doherty] is the perfect person to lead the men and women of this department,” Catalina said. The two started their careers together in the NYPD in the early 90s, he added.

Doherty, who has more than 30-years of experience on the job, is stepping into his new role after serving as chief of detectives — passing the torch to Beran as he takes over the department.

Beran called his promotion a “lifelong dream,” and vowed alongside Doherty to continue “business as usual” when it comes to cracking down on crime in Suffolk.

The waves of the shake-up also hit the Third Precinct, one of Long Island’s busiest and highest-traffic departments, with Mike Kelly now tapped to take over as inspector to lead the command.

Kelly becomes the first black officer in history to run the precinct, and just the second ever to hold the rank of inspector.