One such is his year-old inquiry into price fixing, examining whether some of the nation's most prestigious colleges, including the Ivy League, illegally fix prices in setting tuition and faculty salaries.
That scheme involved regular meetings in the early 1990's to illegally fix prices in the citric acid market.
Westfield is the first English cricketer to be convicted for illegally fixing aspects of a match.
Tobacco Wholesalers Sue Makers United States cigarette wholesalers filed a lawsuit against the five leading tobacco companies, accusing them of illegally fixing prices.
Three to ten-year prison sentences are envisaged for officers who illegally fix the conditions under which "authorized operations" are granted.
Government prosecutors have said that Cargill did not take part with Archer Daniels and three other companies in a much broader conspiracy to illegally fix citric acid prices.
Retailers have filed suit against both Visa and MasterCard, accusing them and their member banks of illegally fixing the transaction fees that merchants pay with every purchase.
The Justice Department filed an antitrust suit last December, charging the airlines with illegally fixing prices by conspiring to limit competition in fares.
British and United States agencies are investigating a possible conspiracy to illegally fix the amounts of fuel surcharges imposed on passengers on long-distance flights to and from Britain.
The lawsuits contend that the payment associations and their member banks illegally fix the transaction fees charged to merchants every time a card is swiped.