BOSTON (CBS) – The Massachusetts State Police have a new member in their ranks – the agency’s first-ever comfort dog.

Four month-old Luna, an English Black Labrador, was donated to the department. She’ll be working with first responders to help with post-traumatic stress and healing.

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Luna the comfort dog (WBZ-TV)

“We know all too well the devastating effects of traumatic stress, and we are fortunate to have Luna,” Col. Kerry Gilpin said at a news conference introducing Luna.

Luna will also be on hand to comfort victims and survivors after “large scale incidents,” police said.

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Luna met the media on Thursday but she already made her first call last week.