These Regulations enforce in Northern Ireland Community legislation on maximum permitted levels of contaminants in food including feed additives. The Regulations provide that it is an offence, among other things: (a) to place on the market certain foods if they contain contaminants of any kind specified in the Commission Regulation or in Regulation 124/2009 at levels exceeding those specified; (b) to use food containing contaminants at levels in excess of those permitted by the Commission Regula