The chief of a newly formed unit in the Baltimore state's attorney's office is leaving after less than eight months on the job, the city's top prosecutor announced in an email to her staff.

Joshua Rosenblatt, a former police officer who was one of the first additions to State's Attorney Marilyn J. Mosby's team following her election last year, oversaw the new Criminal Strategies Unit. It is modeled after a similar unit in the Manhattan district attorney's office and designed to collaborate with police to better target problem individuals.


Spokeswoman Rochelle Ritchie said it was prosecutors' understanding that Rosenblatt was rejoining the Police Department. Reached for comment, Rosenblatt said he did not have a job with the department lined up, and declined to elaborate other than to say he was leaving the state's attorney's office voluntarily.

"I'd rather not get into it," he said of the circumstances of his departure.

Rosenblatt will be replaced by veteran homicide prosecutor Charles Blomquist, who is also a commander with the Maryland National Guard and has been deployed to combat three times.

"Charles has some big shoes to fill, but we're confident his 10 years of experience as a homicide prosecutor and his extensive background in military intelligence and civil affairs makes him an ideal candidate to lead this important new unit and continue the work Josh started," Mosby wrote.

Joining Blomquist in the strategies unit is Albert Peisinger, an assistant state's attorney who has played a key role in the Freddie Gray case as a member of the police integrity unit.

Defense attorneys have accused the state's attorney's office of "judge-shopping" to get search warrants approved, citing communication between Peisinger and a police detective, and separately with Circuit Judge Timothy J. Doory.

They claim Peisinger's actions are sanctionable, but prosecutors said that the defense attorneys were making "deliberate falsehoods" and that a phone call the defense claimed Peisinger made to Doory never happened.

The office hired a new head of police integrity — which investigates police misconduct — in June, bringing on StacyAnn Llewellyn from the Prince George's County state's attorney's office. The position had been vacant as the office conducted a search.

Joining Llewellyn's unit to replace Peisinger is John T. Mitchell, who has been a prosecutor for 10 years following a 22-year career as a Howard County police officer, retiring at the rank of sergeant. Mitchell was working in the general felony unit.

The office has seen a wave of other departures, and has brought on a slew of new assistant state's attorneys.

There were several departures in the Major Investigations Unit after the former chief, Thiru Vignarajah, hired some of its members to join him in the attorney general's office and others left for private practice.

Mosby said felony prosecutors Michael Studdard and Michael Turiello would join the unit as prosecutors.