Re: Regulation versus Appeal
"The answer must be a right of appeal to legal precedent [...]"
Unfortunately in the UK you need deep pockets to take the case all the way through the appeals process. Only an Appeal Court ruling forms future legal precedence - no matter how many times juries refuse to convict people for the same offence.
Too often these days the law makers rush bills through with insufficient scrutiny. Leaving some poor sod to be prosecuted by the police and CPS who will push the limits of a law's vague wording.