Fifty-seven per cent. of serious offenders in Dyfed-Powys escape prosecution and are cautioned. That is compared with an all-Wales average of 36 per cent. and a rate of 22 per cent. in the North Wales police area, which is the local police force of one of the Department's Ministers. When figures vary so much across police force areas, are they audited by the Department to see whether they comply with any guidelines that are issued for the cautioning of serious offenders?