Environment Secretary Owen Paterson told the National Farmers' Union's annual conference that food business operators need to "get out there and win back the confidence of their customers" following the horsemeat scandal.
Mr Paterson said it was the "primary responsibility" of these businesses to ensure food is of the right quality and correctly labelled before it is sold.
He told the audience, "It is totally unacceptable that anyone should buy something labelled beef and end up with horsemeat. That is fraud".
"I am determined that this criminal activity should be stopped and that anyone who has defrauded the customer must feel the full force of law", he added.
More top news
The cult musical Rocky Horror Show returns to the London stage in September with its writer Richard O'Brien as the narrator.
George Orwell's Nineteen Eighty-Four is at the top of teachers' list of books "every student should read before leaving secondary school".
Film director Guy Richie marries his long-term partner Jacqui Ainsley at their country home in Wiltshire.