International band of überanoraks who are headquarterd on a space station. Like stamp collectors on acid, these guys are hardcore and are experts in their field. They are keepers of the arcane crafts and know everything and miss nothing. If someone's wearing the wrong medal, the right medal in the wrong order, the right medal with the wrong ribbon, the right ribbon with the wrong clasp or some other such anomaly, then these blokes will spot it. They're quite an impressive bunch and have come in very useful of late in the battle against the burgeoning Walt infestation. They have state of the art optics at their disposal and can spot a swivelling suspender from low Earth orbit.
Der Gongpolizei come from all walks of life and who knows, you might even be one of them without even knowing it. Scary, eh?
See them in action: http://www.arrse.co.uk/Forums/viewtopic/t=126565.html