4.9 Where prosecutions do occur, whilst the fine amount is
unlimited the fine will have to be proportionate and have to have
regard to the financial circumstances of the individual being
fined.
Is this not more referring to what is involved cost-wise for each intercept as all are different. Firstly, how far do the fighters travel supersonic (ie burning lots of fuel)? How long do they stay airborne? If the decision is to instruct the aircraft to land somewhere that is not destination, the compensation to the aerodrome concerned and any disruption that ensues? The local police force that greet the aircraft? It's not simply getting some fighters airborne and getting an airliner to say hello and all is ok.