Secretary of State at Defra, Owen Paterson, MP for North Shropshire, says sale of horse meat as beef was totally unacceptable.
He told the NFU conference in Birmingham.
"I am determined this criminal activity should be stopped."
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Wintry showers will die out and clear spells will develop overnight leading to widespread frost and ice.
Remaining showers will clear leaving a cold and clear night with widespread frost.
Heavy snowfall has caused widespread disruption across the East Midlands, with icy roads and snowy conditions affecting travel services.