Natasha Singer writes for the NYT:
In October 2004 Miami-Dade police arrested Daniel Acosta after he offered injections to a detective posing as a client. "He specialized in injecting lips and buttocks," said the 33-year-old detective, who was not identified because she works undercover. After Mr. Acosta was arrested, police found needles, syringes, Botox and prescription drugs in the apartment in Kendall, Fla., where he worked. In April 2005, Mr. Acosta pleaded guilty to practicing medicine without a license and was sentenced to probation.