As "Islandcrazy" mentioned, the pilot will now more than likely be put through the force's internal discipline process.
This type of driving incident isn't that unusal, people drive dangerously through roadworks and make off from the Police on a daily basis. The problem for this person is because of his occupation then the national press have picked up on it. This is my opinion but it leaves the force in question with little else to do but look at a charge of bringing the force into disrepute.
However because members of Police "Staff" (civilians) have more employment rights and much stronger unions than Police Officers, it is usually more difficult to sack them. Hence the reason that there are entire "posse's" of under performing next to useless PCSO's walking the streets of the UK
TJF97