Civil Procedure Rules
A further definition from The (Alternative) Legal Costs Dictionary:
Civil Procedure Rules n. a set of rules set in stone and designed to provide certainty in the operation of the civil justice system, applied inconsistently and unpredictably by the courts. Currently in its 58th version. If the Ten Commandments had undergone changes and additions at the same pace, the Forty-fourth-thousand-third-hundred and Eleventh Commandment would be concerned with the size of marmite jars.