SOUTH PORTLAND — The city of South Portland’s police dog Trigger is one of 16 police dogs in Maine that will receive a bullet- and stab-proof protective vest.

Lt. Frank Clark of the South Portland Police Department said Trigger’s vest is being paid for by Vested Interest in K9s Inc., an all-volunteer charity organization based in East Taunton, Mass.

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Since it was founded in 2009, Vested Interest in K9s has provided more than 443 protective vests to police dogs in 37 states. Each vest costs $950 and is warrantied for five years.

Clark said the dog vests in Maine will be purchased with a $15,000 grant provided to Vested Interest in K9s Inc. by The Petco Foundation.