BIKINI BOBBY READY Incredible moment swimsuit-wearing off-duty cop pins down thief who stole sunbathers’ mobile phonesMikaela Kellner pursues the crook and slams him into the ground with an arm-lockHilarious images show policewoman and bodybuilder Mikaela Kellner grappling with the alleged thief in the middle of a park.This pickpocket got more than he bargained for when off-duty copper Mikaela Kellner took him down while still wearing her bikini. She slammed him to the ground with a powerfully administered arm-lock