These Regulations make provision for the enforcement and execution of specified Commission Regulations and Directives concerning official control of the levels of contaminants in foodstuffs. The Regulations: (a) provide that it is an offence to: (i) place on the market certain foods if they contain contaminants of any kind specified in the Commission Regulation at levels exceeding those specified, (ii) use foods containing such contaminants at such levels as ingredients in the production of cert