Regardless of the when's where's and why's this guy was breaking just about every road traffic act regulation in the book and should be dealt with accordingly.
I have had pretty much all the driver training available to the general public and all of that training is quite clear.
Speed does not kill. Innapropriate use of speed kills.
80+ mph even on a clear motorway is innapropriate, I have been 'spooked' by shadows enough to make me twitch at the controls. That is the start of a major incident regardless of the skills I may have aquired and the familiarisation I may be seeking to acheive. Even with ABS 50 mph on a wet grass embankment seems like an eternity.
The guy is using every trick in the book to avoid prosecution and to prevent the police from looking like complete idiots in the face of an obvious incident where the law was broken.
Ok they have a tough job, mainly because they and the government have successfilly alienated every single motorist with more than a few brain cells.
IMHO they should pull their finger out and start applying their rules to their own.
Nick him for speeding as they would for Joe Soap. Ok he would lose is job. So would I it I were nicked for 2/3 of that speed.
If the police want to operate a 'one rule for us' then they can, only they must expect a decline in the respect that the general public have for them, and that is already on a rapid downhill trend.