Fire expert witnesses may provide reports concerning arson detection, arson investigators standards of care, fire equipment, and fire origin and cause. Fire expert witnesses will testify in the Gatesville, TX, case against David K. Allen. Allen is charged with murder in the 2011 death of his wife Paula Allen. Fire investigators will testify as to whether the fire was intentionally set. Allen was charged in 2012 with using an accelerant to start the fire.