Oberfeldwebel of the Feldgendarmerie of the German Afrikakorps. He is wearing a Field Police tropical tunic straps. The winkerkelle (traffic stick) he is using is the standard vehicle stick found in the smaller vehicles. Note the British officer standing behind!
Source :
https://www.facebook.com/photo.php?fbid=141730587417149&set=gm.2379626985661455&type=3&theater&ifg=1
