Forensic Examiner, Forensic Consultant Services, since September, 1986.

Patrol Sergeant, University of Texas at Arlington Police Department, 1981-1986.

B.D., Theology, Arlington Baptist Seminary, 1970.

B.S., Religious Education, Arlington Baptist College, 1985.

B.S., Criminal Justice, University of Texas at Arlington, 1986.

Additional studies in Chemistry and Mathematics.

Basic Police Training, UT System Police Academy, 1982.

Construction Site Security, Southwest Texas State Univ., 1982.

Police Writing Workshop, Regional Police Academy, 1982.

Interviews & Interrogation, Regional Police Academy, 1982.

First Line Supervisor, UT System Police Academy, 1982.

School of Police Supervision, UT at Dallas, 1985.

Crime Scene Methods, Center for Criminal Justice, UT at Arlington, 1985.

Clandestine Lab Hazards Workshop, SWAFS, 1987.

Clandestine Lab Workshop, SWAFS, 1987.

Advanced Latent Fingerprint Techniques, Plano Police Academy/F.B.I., 1988.

Texas Homicide Symposium, Collin County D.A. Office, 1988.

Basic F.B.I. Fingerprint Classification and Identification School, Arlington Police Training Academy/F.B.I., 1989.

Bombs and Booby Traps, SWAFS, 1989.

Basic Police Instruction School, Regional Police Academy, Tarrant County Jr. College, 1989.

Footwear and Tire Track Identification, SWAFS, 1990.

Arson Accelerant Detection Course, SWAFS/ATF, 1990.

Clandestine Laboratory Synthesis, SWAFS, 1991.

Polarized Light Microscopy, SWAFS, 1991.

Booby Trap Detection, SWAFS, 1991.

Analysis of Anabolic Steriods, SWAFS/SAFS/SAT, 1992.

LSD Workshop, Clandestine Laboratory Investigating Chemists Assn., 1992.

Bloodstain Pattern Interpretation, Institute of Law Enforcement, Northeast Louisiana Univ., 1992.

Analytical Gas Chromatography, D-FW Section, American Chemical Society, 1992.

Serial Number Restoration, SWAFS/DPS, 1993.

Headlamp Examination, SWAFS/DPS, 1993.

Blood Spatter, SWAFS, 1993.

Demystifying Palm Prints, Amarillo PD, 1993.

Chemical Processes for Latent Prints, TDIAI, 1994.

International Symposium on the Forensic Aspects of Footwear and Tire Impression Evidence, FBI, 1994.

Superglue Workshop, Corpus Christi PD Academy, 1994.

Bloodprint Development, Corpus Christi PD Academy, 1994.

Expert testimony rendered in various state and federal courts

Controlled substances and clandestine drug labs

Blood alcohol testing

Arson accelerant detection

Fingerprint processing

Tire tread and footwear comparisons

Crime scene evaluations and reconstruction

Forensic photography

Latent print identification

Lamp filament examination

Obliterated data and serial number restoration

Blood spatter interpretation

Southwestern Association of Forensic Scientists (SWAFS)

Clandestine Laboratory Investigating Chemists (CLIC)

International Association of Blood Pattern Analysts (IABPA)

The Fingerprint Society (United Kingdom)

"A Protocol for the Forensic Chemist in the Field Investigation of Clandestine Amphetamine Labs", co-authored with Max Courtney, SWAFS, Spring, 1988.

"Laboratory Analysis of Clandestine Lab Chemicals, Reaction Mixtures, and Raw Products", co-authored with Max Courtney, SWAFS, Fall, 1988.

"Phenylacetone Synthesis in Clandestine Labs," co-authored with Max Courtney and J. R. Dupré, SWAFS, Fall, 1989.

"Chemical Screening and Laboratory Analysis of Clandestine Amphetamine Laboratories", co-authored with Max Courtney, SWAFS, Spring, 1989.

"Clandestine Drug Lab Latent Print Protocol", International Association for Identification, Summer, 1989.

"The Efficacy of Latent Print Examinations in Clandestine Lab Seizures", co-authored with Max Courtney and J. M. Maberry, SWAFS, Fall, 1990; also presented at Texas Conference of International Association for Identification, June, 1991. Also presented at CLIC, San Diego, CA, September, 1991.

"The Leuckart Synthesis in the Clandestine Manufacture of Amphetamines," co-authored with Max Courtney and Janet Springer, SWAFS, Fall, 1991.

"Who Needs Regulated Chemicals? Phenylacetone Synthesis Through Freidel-Crafts Alkylation", co-authored with Max Courtney, CLIC, Fall, 1992.

"A Thousand Points of Light," co-authored with Max Courtney, TDIAI, Summer, 1994.

"Self-Wounding of Assailants During Stabbing and Cutting Attack," co-authored with Max Courtney and Jim Varnon and co-presented with Jim Varnon, TDIAI, June, 1995.

Techniques in Clandestine Drug Labs, Grand Prairie P. D. Academy, 1988, 1989, 1990, 1991.

Techniques in Clandestine Drug Labs, Sulfur Springs P. D., 1990.

Basic Crime Scene Search, Tarrant County Junior College Police Academy, 1988 - 1993.

Basic Crime Scene Search, North Central Texas Council of Governments Police Academy, 1988 - 1993.

Drug Screening Techniques, Forensic Consultant Services, 1990, 1991, 1994, 1998.

Techniques in Clandestine Drug Labs, East Texas Police Academy, 1991.

Techniques in Clandestine Drug Labs, Tarrant County NICU Task Force, 1996.

Criminalistics and Crime Scene Reconstruction: A Seminar for Attorneys, SWAFS, 1996.

Latent Print Processing, SWAFS, 1996.

Basic Latent Print Processing, River Oaks P. D., 1996.

Advanced Crime Scene Investigation, Mansfield P. D., 1998.

"Protocol for the Forensic Chemist in the Field Investigation of Clandestine Amphetamine Labs," co-authored with Max Courtney, SWAFS Journal, Spring, 1988.

"Chemical Screening and Laboratory Analysis of Clandestine Amphetamine Laboratories," co-authored with Max Courtney, SWAFS Journal, Spring, 1989.

"Phenylacetone Synthesis and Clandestine Laboratories," SWAFS Journal, April, 1990.

"The Efficacy of Latent Print Examinations in Clandestine Lab Seizures," SWAFS Journal, 13-1, 34, 1991.

"The Efficacy of Latent Print Examinations in Clandestine Lab Seizures," CLIC Journal, July, 1991.

"Using the Luminol Reaction with Blood in Crime Scene Reconstruction," co-authored with Max Courtney, SWAFS Journal, 14-2, 21, 1992.
"Who Needs Regulated Chemicals? Phenylacetone Synthesis Through a Friedel-Crafts Alkylation," co-authored with Max Courtney, CLIC Journal, 2-4, 17 1992.

"A Thousand Points of Light--Defining Blood Spatter Through Chemical Enhancement," SWAFS Journal, 15-1, 46, 1993.

"The Efficacy of Latent Print Examinations in Clandestine Lab Seizures," TDIAI News, 47-3, 1993 (reprint).

"Self-Wounding of Assailants During Stabbing and Cutting Attacks," co-authored with James Varnon and Max Courtney, SWAFS Journal, 17-1, 19, 1995 (reprinted in CAC News, 1996, and in IABPA News, 12-3, 1996).

"Luminol: The Next Generation," co-authored with Frank Shiller, Max Courtney, Michelle O'Neal, and Jon Brooks, SWAFS Journal, 18-1, 25, 1996.

"O, Dem Bones: Systematic Analysis of Remnants from 'Nazi' Methamphetamine Laboratories," co-authored with Max Courtney, J. CLIC, 13-1, 17, 2003.

Forensic Chemistry and Criminalistics Internship, Forensic Consultant Services, through the University of Texas at Arlington, 1985.

Arlington Police Academy

East Texas Police Academy

Dallas County Sheriff's Office

North Central Texas Regional Police Academy

Tarrant County Criminal Justice Training Center

Texas Conference, International Assn. for Identification

Tarrant County District Attorney's Investigators

Senior Crime Scene Analyst, International Association for Identification, 1992 - present.

Director, Clandestine Laboratory Investigating Chemists Association 1994 - 1995.

Co-Editor, SWAFS Journal, 1994 - 1997.

"Best Technical Paper," SWAFS, October, 1992, "A Thousand Points of Light," co-authored by Max Courtney.

"Best Technical Paper," SWAFS, November, 1994, "Self-Wounding of Assailants During Stabbing and Cutting Attacks," co-authored by Max Courtney and Jim Varnon.