2013 horse meat scandal as 100% beef. British company Primerdesign Ltd provided many of the tests to laboratories and companies wishing to test for contamination. By 16 January 2013 four subsidiaries of ABP had been accused of supplying adulterated meat. They were Silvercrest in County Monaghan, Dalepak in North Yorkshire, Freshlink in Glasgow, ABP Nenagh in County Tipperary, Ireland and Dairy Crest, Rossington. Hamburger meat from Silvercrest Foods, a subsidiary of Larry Goodman's ABP Food Group, in County Monaghan, Ireland, was found to contain 29% horse meat relative to beef. Porcine DNA was also found. Tesco dropped Silvercrest as a supplier of processed meat,
Philip Hamburger Philip Hamburger Philip Hamburger is an American legal scholar. Hamburger holds a Juris Doctor from Yale Law School (1982) and a Bachelor of Arts from Princeton University (1979). Hamburger is the Maurice and Hilda Friedman Professor of Law at the Columbia University School of Law. He is a legal historian and a scholar of constitutional law. Before moving to Columbia, Hamburger was John P. Wilson Professor at the University of Chicago Law School, where he was also Director of the Bigelow Program and the Legal History Program. He was previously Oswald Symyster Colclough Research Professor at George Washington University Law