Keith MacPherson, a longtime Waltham police official, was sworn in as the city's police chief Monday night after the City Council voted unanimously to appoint him to the top cop job.
MacPherson will fill the police chief position vacated by Thomas LaCroix, who resigned this past summer after a Concord District Court jury convicted him of assaulting his wife.
The council's vote was the last hurdle MacPherson had to overcome before becoming the next official police chief.
Mayor Jeannette McCarthy in January recommended MacPherson to take the position, which he has been manning since LaCroix was placed on administrative leave last summer.
"He's the deputy [chief] and I think he's been doing a wonderful job as acting chief," McCarthy said Friday.
MacPherson earned the mayor's recommendation over police captains Steven Champeon, Donald Feeney and William Stanton, who were all also up for the position.
Last year, LaCroix made $163,119 in salary and longevity pay as police chief, according to payroll records.
Jaclyn Reiss can be reached at firstname.lastname@example.org