Two guys were discussing with me how this captain made major - one said, "Pole turtle." Neirher of us knew what that was, so he told that if you're driving on a country road with barbed-wire fence on either side of the road, then you suddenly see a turtle sat squarely on a fence pole you ask, "Well, how in Hades did he get up there??" - then you've experienced a 'pole turtle.' In policing you'll meet more than one.