From the Chronicle, a story for 2302:
A controversial Texas psychologist whose criminal justice work had made him a modern-day version of the notorious "Dr. Death" — who testified for the state in hundreds of capital punishment trials a generation ago — has reached a settlement with a state licensing board in which he agrees to conduct no more evaluations of intellectually challenged defendants in criminal proceedings.
While admitting no wrongdoing, psychologist George Denkowski agreed to stop evaluating criminal defendants for possible mental retardation after the Texas State Board of Examiners of Psychologists determined that his techniques lacked scientific credibility. The board had become concerned that Denkowski's methods were being used to make life-and-death decisions but had not been validated.
The board also issued a formal reprimand and a fine of $5,500 in exchange for dropping complaints against Denkowski. The settlement came after increasing opposition to Denkowski's opinions, which had been used to keep 16 Harris County killers on Texas' death row after the Fort Worth psychologist concluded that they were intellectually capable enough to be subject to execution. Two of those inmates were executed.
But the tide turned against him as lawyers for inmates marshaled the collective opinion of clinical psychology. In in 2008, a state judge in Harris County tossed out a Denkowski evaluation in a capital case because the judge said it lacked evidence of accepted methodology. The defendant's sentence was commuted to life. Two years later, the American Association on Intellectual and Developmental Disabilities cautioned against using Denkowski's methods until they had been scientifically proved.