police A12 London bound, Black BMW1300s

Traveling towards Essex yesterday on the A12, about 15 mins from the M25 was a unmarked black BMW1300 on the London bound side tucked back from the road so it could not be seen, the police rider was off the bike looking back through the bushes for any speeding vehicles.

The officer was kitted out in regulation high vis and white helmet etc .

Bit sneaky or what.

Anyone seen this bike before???