Braintree Police Chief Russell Jenkins has announced his retirement Thursday while his department is under fire for an audit showing that massive amounts of cash, drugs and guns seized as evidence are missing. 

The audit, which was released publicly earlier this month, found that more than $400,000 of seized money along with thousands of pieces of drug evidence and dozens of firearms had vanished, according to the Boston Globe.

“I find the auditor’s report of unaccounted for items and poor record keeping practices by the Police Department to be deeply troubling and unacceptable,” Mayor Joseph Sullivan told reporters Thursday. 

A total of 22 cases have been thrown out of court because of missing evidence, the Patriot Ledger reported. 

Jenkins wrote a letter to the mayor in which he announced that he will be retiring Oct. 7 after 33 years with the department (the last four as chief). In the letter, he wrote that it was "an honor and a privilege" to serve as chief.

Sullivan accepted his retirement, according to a statement from the mayor's office. 

"I appreciate and commend his nearly 34 years of service to the Braintree Police Department and the community," Sullivan wrote. "I wish him and his family well."

Jenkins ordered the audit, which examined evidence dating back to 1999, after suspecting problems with the evidence room. The officer who ran the evidence room killed herself a week after the auditor first spoke with her in May, according to the Globe.