The state’s law enforcement overseers have removed the certification of a police sergeant over his alleged failure to report the rape of a 14-year-old student by another officer while both worked for the Hopkinton police.

According to the Police Officer Standards and Training commission, Milford Sgt. Timothy Brennan should not be certified to work as a police officer in Massachusetts due to his decision not to report a fellow officer’s illegal conduct for more than a decade, and only coming clean after the district attorney started looking into the matter.

“The Commission received evidence supporting the conclusion that the Respondent had knowledge, in 2017, of a school resource officer allegedly having committed an indecent assault and battery against a student in 2004, when she was 14 years old,” they agency wrote in a letter to both Brennan and the Milford and Hopkinton Police Departments.

The Commission also noted that by August 2022, Brennan was aware the school officer allegedly raped the same student when she was 14.

“The Respondent did not report the alleged indecent assault and battery or the alleged rape until after the District Attorney’s office initiated an investigation later in August 2022,” they wrote.

Brennan was fired from the Hopkinton Police Department in February, after a 4 – 1 Select Board vote to end his employment over allegations he violated department policy by not reporting information regarding former Deputy Chief John “Jay” Porter’s alleged unlawful sexual contact with the minor student decades prior.

At the time of the alleged crime, Porter was serving as the school district’s first assigned resource officer, and in 2022 he marked 30 years of service with Hopkinton Police Department.

A grand jury indicted him in May of 2023 after an investigation by the Middlesex District Attorney’s Office and Massachusetts State Police led to allegations he raped and assaulted the student multiple times while off school grounds.

The former deputy chief filed his retirement paperwork just days before the indictment came down. Porter’s trial is currently set for December 9, according to the Hopkinton Independent.

The Milford Police Department hired Brennan in July under a conditional certification, but as of August 15 — the commission’s last meeting — the state no longer thinks he’s fit to serve.

“The Commission finds by a preponderance of the evidence that suspension of the Respondent’s certification is warranted and is in the best interest of the safety and welfare of the public,” they wrote.

According to the letter, Brennan’s certification to work as a police officer in Massachusetts is revoked the moment he or the department receives the suspension letter.

As a consequence he is ordered to surrender “without delay, any agency-issued credentials and equipment that promote and support the performance of functions associated with service as a law enforcement officer, including but not limited to, any uniform, badge, firearm, assigned cruiser, and use-of force instruments, such as tasers.”

Brennan is allowed to appeal the commission’s decision and request a hearing for a stay or revocation of the suspension.

Milford Police Chief Robert Tusino did not return a request for comment. Brennan could not be reached for comment.

Former Hopkinton deputy chief John Porter. (Photo courtesy Hopkinton Police Department)