A former police chief now says heís guilty of crimes he used to investigate. 54-year old Michael Dean Roberts admitted to federal court to dealing meth, cocaine and other drugs. Authorities say he sold thousands of pills for an almost 7 year period and was caught during numerous undercover stings. Investigators say that some of the drugs Roberts sold came from his departmentís evidence room. Roberts will be sentenced on October 9th and could face 20 years in prison and a $1 million fine.