After 22 years with the Edgartown Police Department, officer Stephanie Immelt has chosen to retire, Chief Bruce McNamee told the select board on Monday.

Ms. Immelt was at one point one of only three female police officers on the entire Island, and the only female officer in her department. She is currently one of two female officers in the Edgartown police department.

Originally a student of sociology, Ms. Immelt first joined the force as a part-time officer in West Tisbury under former chief Beth Toomey, gradually working her way up to full time. She was perhaps best known for her work as the school resource officer in the Edgartown school, greeting students at carpool each morning.

“A lot of the calls that we get are of a social side, of needing help within families and being empathetic and understanding both sides,” she told the Gazette in a 2018 article. “To go into police work, you have to be interested in people and what makes them tick.”

Town administrator James Hagerty passed on his thanks to Ms. Immelt and to the department as a whole.

“As a parent, I drop my kids off at school every day, and rain, sleet or shine you see an officer and a teacher there to greet them,” Mr. Hagerty said. “I know it means a lot to the parents that they’re there.”

Officer Gary Kovack will replace Ms. Immelt at the Edgartown School, Chief McNamee said.

In a separate vote, the select board approved Chief McNamee’s request to move the District Attorney’s office on-Island from the courthouse to the police headquarters.

“When I say it was a closet, that’s not hyperbole — they literally worked out of a closet,” Chief McNamee said. “I think this arrangement will really help the police and the DA’s office across the Cape and Islands work together going forward.”

In other business, the Edgartown select board voted to expand the commercial oyster season on Sengekontacket Pond. The new season will take place from Feb. 1 to May 1, with shellfishing hours from 7 a.m. to 4 p.m. Monday through Friday.

“This is a good opportunity to expand the shellfish season into the winter,” shellfish constable Robert Morrison said in his presentation, adding that the expanded season will be a boon to commercial farmers and to conservationists looking to lower nitrogen levels in the pond.

The decision passed unanimously.

“Hopefully the weather stays the way it has been,” select board chair Margaret Serpa said.