of the /2 range BUT a fox is ask to know if it's a single or a twin (and a 500 or 600) there were blured pics of traffic control scene, will have a look for it, now. unfortunatelly reveals another, much newer BMW R75 or so is used here it is not german but austrian POLIZEI
@brotherjack, friendly officer "Fox" started engine around 33:30, et voila typically Boxer sound so we can exclude R25 26 27!