I wrote to you some while ago about the 1689 Bill of Rights as it may apply to on the spot fines. This Act contains "inalienable rights", one of which is as follows: “That all grants and promises of fines and forfeitures of particular persons before conviction are illegal and void.”
As a lay person I take this to mean that one cannot be fined unless tried and found guilty. Whilst it is fully appreciated that Parliaments can (and do) change "inalienable rights" when it suits their purpose, it is a bit rich that our Westminster employees are using this Act to justify their "expenses" but deny the rest of us right of defence in court where appropriate.