"Congratulations to Capt. Eileen Tiernan on your promotion to chief," the department wrote in a Facebook post. "You possess every quality and characteristic of a true leader.
"The department and the borough are in your capable hands. We are proud to call you chief."
Tiernan became the officer-in-charge after now-former Police Chief Anthony Galietti abruptly retired two months ago.
Mayor Keith Kazmak said the 25-year department veteran "has earned the respect of the Police Department, the Council and the entire community.”
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