Before law school, Mr. Cessna served as a law enforcement officer for ten years. During this time, he received formal training and experience in conducting DUI investigations through the administration of standardized field sobriety testing and the operation of the intoxilyzer 4011 and 5000. In 1996, Chris was accepted into the University Of Denver College Of Law. During his law school tenure, Chris served as a law clerk to the Colorado Supreme Court Office of Attorney Regulation. After his second year of law school Chris served as an intern deputy district attorney prosecuting traffic cases at trial, and was selected to research, write and submit an appellate brief to the Colorado Supreme Court for its deliberation and consideration on the admissibility of “Horizontal Gaze Nystagmus evidence in DUI cases”.



Law Enforcement Officer Training:

  • Horizontal Gaze Nystagmus / NHTSA Standardized Field Sobriety Testing– Arizona Highway Patrol, Grand Canyon National Park, Arizona, May 18, 1993.

  • Intoxilyzer 4011 Operator’s Course – Arizona Highway Patrol, Tucson, Arizona, November 2, 1994.

  • Intoxilyzer 5000 Operator’s Course – Arizona Highway Patrol, Tucson, Arizona, November 2, 1994.

  • Drug Recognition Screening – Arizona Highway Patrol, 1993

  • Advanced Narcotics Investigations – DEA, 1991

  • Emergency Medical Technician – U.S. National Park Service / Red Cross, 1989

  • Basic Standardized Field Sobriety Testing at the following police academies:

  • United States Air Force Police Academy, December 19, 1985.

  • Charlotte (North Carolina) Police Academy, March 22, 1988.

  • Federal Law Enforcement Training Center, October 29, 1992.

  • Received over 2,000 hours of miscellaneous law enforcement and investigative training from 1987 – 1996.