Thiessen Law Firmbr 1221 Studemont St.br Houston, TX 77008br Phone: (713) 864-9000br br If you've been arrested for a DWI in Texas you have some very quick deadlines approaching including 15 days to save your license. The first thing you should do is meet with an experienced DWI Trial Lawyer. Here at the Thiessen Law Firm we've trialed all types of DWI defense cases. We've won cases ranging from a breath test from a .08 to a .24. We've won blood test from a .08 to a .28. Make sure your lawyer knows the science behind breath and blood testing.