Nevada Athletic Commission
On September 21, 2007, Gilbert scored a first round knockout over Charles Howe, however, the ruling was later changed to a no-decision. Gilbert was suspended by the Nevada Athletic Commission after testing positive for a number of illegal substances including a steroid, methamphetamine and amphetamine resulting from testing conducted before and after the fight. Nevada Athletic Commission Executive Director Keith Kizer told Channel 2 Sports Director J.K. Metzker that Gilbert tested positive for illegal substances in urine tests taken before and after Gilbert's September 21st middleweight title fight against Charles Howe at the Grand Sierra Resort.