Massachusetts Gov. Deval Patrick speaks with reporters in Cambridge, Mass., on Thursday, Sept. 27, 2012. Mr. Patrick said he expects criminal charges will be brought in an investigation of misconduct by a state lab chemist who admitted faking drug-sample results, forging signatures and skipping proper procedures. (AP Photo/Steven Senne)

Photo by: Steven Senne

Massachusetts Gov. Deval Patrick speaks with reporters in Cambridge, Mass., on Thursday, Sept. 27, 2012. Mr. Patrick said he expects criminal charges will be brought in an investigation of misconduct by a state lab chemist who admitted faking drug-sample results, forging signatures and skipping proper procedures. (AP Photo/Steven Senne)