Mark and I worked together as team members for our NHTSA Standardized Field Sobriety Testing (SFST) Instructor Course in May of 2011. This course was virtually identical to the course that select law enforcement personnel would be allowed to attend for the purpose of SFST instructor qualification/certification. Throughout the course, Mark showed a sincere passion for tenacious DUI/DWI defense, and I would highly recommend his counsel to anyone in the unfortunate position of defending themselves from a charge of DUI/DWI