Mary Lou Keel began serving on the Texas Court of Criminal Appeals on January 1, 2017.
She presided over the 232nd District Court, a felony trial court in Harris County, from 1995 through 2016.
She served as an assistant district attorney in both the trial and appellate courts for seven years.
Judge Keel began her legal career as a briefing attorney at the First Court of Appeals, an intermediate appellate court.
She has been board certified in criminal law since 1990.
Her career has concentrated on Texas criminal law and has combined both trial and appellate work.