AUSTIN (AP) — Gov. Rick Perry has appointed Tarrant County's medical examiner to the Texas Forensic Science Commission, a group shaken up this fall when Perry replaced several members.

Dr. Nizam Peerwani's term on the commission that oversees professional conduct in forensic labs in Texas will expire Sept. 1, 2011.

Perry replaced the head of the commission and two of its eight other board members on Sept. 30. That was just days before the panel was to consider a report critical of an arson finding leading to the execution of Cameron Todd Willingham for the deaths of his three daughters.

Perry spokeswoman Katherine Cesinger says Peerwani replaces Randall Frost, the chief medical examiner for Bexar County, who resigned Oct. 30 three weeks after his appointment.

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