He was named in the George J. MitchellReport, which detailed anabolic steroid use in MLB, on December 13, 2007. As a current ball club employee, Laker was required to consent to an interview, in which he admitted to purchasing Deca-Durabolin and testosterone from Kirk Radomski from 1995 to 1999. Laker claimed he was introduced to Radomski by teammate David Segui. In March 2008, Laker admitted regretting his decision to take performance enhancing drugs stating:
I made a poor decision, a mistake, and all I can do is ask for forgiveness and move on.