PPD Cop (Ally)
From City of Heroes: Rebirth - Wiki
Three PPD Cops can be found as allies on the prevent breakout side mission in Safeguard Missions on Atlas Park. Once free of the Vahzilok attacking them, they will join you.
These cops have the same attacks as the regular cops found in other zones of Paragon or during Mayhem Missions. They will attack all hostiles in their aggro radius. They can be healed by players and probably buffed as well.
Information
The Paragon Police Department is charged with the unending duty of keeping the streets of the city safe for its citizens. These brave men and women watch over Paragon City, dedicating their lives to make it a better place.