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10 May 2016, 14:41
The craze started in New Zealand, spread across to London and New York, and now Essex Police have joined the forces around the world taking part in the #RunningManChallenge.
PC Alan Conran and a group of his off-duty colleagues headed to Hylands park to film the video yesterday (9th May 2016).
They say they were challenged by the Met Police to take part.
See the video below.