Brian Corrigan graduated from the SMU Dedman School of Law in 1999, and began his career as a trial prosecutor for the Dallas County District Attorney’s Office. He was promoted quickly to felony in 16 months and tried and won his first murder case four months later at the age of 27. Corrigan developed a reputation as a fierce trial advocate based on relentless preparation and investigation of his trials. Corrigan often found witnesses unknown to investigators and once found a juror from a 1957 murder case to prove-up a lost murder conviction in a rape trial. At different times in Dallas, he was assigned to the misdemeanor division, the family violence division, the child abuse division, and the felony trial division. Corrigan rose to the position of Felony Court Chief of Criminal District Court #4. Corrigan also successfully tried several high-profile Dallas cases including the 2005 “Eddie Dean’s Murder” trial and the 2005 Sexual Assault trial of Irving Family of God pastor Steven Smith.
After seven years as a prosecutor in Dallas, Corrigan left Dallas County to be the First Assistant District Attorney in the Kaufman County District Attorney’s Office. In that position, Corrigan was the top felony prosecutor in the county as well as the 2nd in command to the elected District Attorney. Corrigan supervised and trained prosecutors and handled a full felony caseload. He was a also a trusted advisor to police detectives in all phases of criminal investigations, often advising on investigative strategy, charging decisions, or personally drafting search warrants. Corrigan also ran one of the Grand Juries, presenting nearly a thousand felonies to the Grand Jury and conducting complex Grand Jury investigations. Corrigan as handled more high-profile cases including the successful 2008 Capital Murder trial of Daniel Griffin for capital murder and aggravated sexual assault. Corrigan never lost a murder or capital murder trial in his career as a prosecutor including 11 murder trials and 7 capital murder trials. Corrigan became Board Certified in Criminal Law while still a prosecutor in 2009.
After a decade as a prosecutor, in 2010, Corrigan left the D.A.’s Office to become a criminal defense attorney in private practice zealously representing citizens in Rockwall, Dallas, Collin, and Kaufman Counties, and across North Texas. Corrigan. Corrigan’s impact in private practice has been amazing with stunning Not Guilty Verdicts in felony and misdemeanor trials. From a string of Not Guilty verdicts on DWI cases (including an 8 minute Not Guilty in Dallas County) to dramatic Not Guilty verdicts on 1st Degree felonies like manufacture delivery of controlled substance, Aggravated Sexual Assault, and Injury to a Child Causing Serious Bodily Injury, Corrigan's clients and his opponents learn time and again that Corrigan is an advocate of the highest order. Vast experience and trial experience in nearly every crime in the Texas Penal Code coupled with intimate understanding of every level of the criminal justice has also resulted in repeated dismissals, plea reductions, and dropped charges for Corrigan’s clients. Corrigan can often drastically minimize or eliminate negative consequences. Corrigan has particularly enjoyed the challenge and reward of tailoring a defense that is best for each individual client that provides the best possible outcome, not sloppy one-size-fits-all defense work. Corrigan’s clients also have the benefit of Corrigan’s network of friends in prosecution and law enforcement that bring Corrigan credibility in state and federal courtrooms and law enforcement agencies across East and North Texas.
Corrigan has also found a unique ability to help his clients improve their lives whether it be with drug treatment, mental health treatment, or entry into one of the regions Veteran's Courts. Corrigan considers it his mission to "fight the case but also help the person."
Corrigan was board certified in Criminal Law in 2009. In 2010, Corrigan joined the select Criminal Justice Act voluntary panel for the United States District Court, Northern District of Texas, Dallas Division as well as the Eastern District of Texas. He is licensed to practice law in the State of Texas, the United States Northern District of Texas since, and the United States Eastern District of Texas.