Thanks to Vulfy for digging out the video lessons from the Japanese Police training system. http://www.bikebros.co.jp/vb/ridetech/police/
I think the best lesson everybody can draw from this series is the timing of the head-snap in the figure 8. You will see that the head is snapped round to point at the other pylon just as the front tyre reaches the pylon you are going round. This helps to tighten the turn and keeps everything nice and stable.
The most astounding lesson in the series is the opposite lock 'U' turn, which I saw being demonstrated when I was last out in Japan. It blew me away then as it showed that counter-steering doesn't work only above 20mph (which a lit of schools teach) but works all the way from zero mph.
Dedicated to the wonderful sport of Moto Gymkhana