Hopefully the Police will take a look at the bicycle GWB was riding to ascertain that it was roadworthy, with efficient brakes, correct reflectors and an audible warning instrument (usually a bell). Certain Cunstruction and Use regulations apply to bicycles in the UK, as does the fact that cycles are only permitted to be used on the road or dedicated cycleways. Cycling on pavements is prohibited as they are defined as footpaths.
The policeman is quite entitled tu sue GWB for assault.
No-one is above the law and I hope that, were there any transgressions, the full weight of the Courts would fall on the errant cyclist. If the US can have a "zero tolerance" policy then so should we.
Colyn.