WAGA-TV investigated Stone Cold Chemicals, which "sells cleaning supplies to federal, state and local government offices across the country. They generate millions of dollars -- tax dollars -- by offering the government supervisor a gift. In exchange, the supervisor agrees to order what are often over-priced supplies. (WAGA-TV) found the company giving supervisors what they called a 'premium,' worth as much as 10 percent of what they ordered. Purchasing agents told (WAGA-TV) this type of sales tactic is unethical, and in their opinion, illegal. That may explain why the company often sent those expensive gifts to the supervisor's home instead of the office."