It didn't take long for a pickpocket to realise what a bad decision it was trying to pull a fast one on a group of off-duty police officers. Before he could realise, he was face-down on the ground being taken into custody by badass cop Mikaela Kellner who was out sunbathing. The moment that was captured and uploaded by the Swedish police officer on her Instagram page has since gone viral. "My first intervention while wearing a bikini during my 11 years as a police officer," she said on the social-media photo sharing website. Apparently, Kellner and her three friends were sunbathing in a park in Stockholm when a homeless man selling newspapers approached, she told Swedish newspaper Aftonbladet. After he left, one of the friends noticed her phone was missing. That's when Kellner and another officer went after the culprit. They chased him for up to 50 ft before tackling and pinning him down to the ground. "If I had been naked I would have intervened as well," she said. Whattey badass!