Sebastian Frommhold Pasadena Regional Crime Lab 923 Shaw Pasadena, Texas Phone: FAX:

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1 Curriculum Vitae Sebastian Frommhold Pasadena Regional Crime Lab 923 Shaw Pasadena, Texas Phone: FAX: ACADEMIC: 1984 Bachelor of Science in Chemistry University of Texas at Austin EMPLOYMENT HISTORY: Pasadena Regional Crime Lab Pasadena Police Department (Pasadena, TX) January 2001 Present: Forensic Chemist, Senior Forensic Chemist 1. Receive and analyze controlled substances, dangerous drugs, and toxicological (urine or blood) samples. Provide expert testimony in court concerning analytical results. 2. Assist in developing analytical methods for new drugs and toxic compounds. Improve existing methods to increase recoveries and lower detection limits. 3. Provide training to Police Cadets, Police Officers, and District Attorneys in alcohol and drug impairment, impairment detection, and physiology, pharmacology, and toxicology of alcohol and drugs. 4. Supervise the Breath Alcohol Testing Program. Testify in courts concerning breath test instrumentation, scientific theory of alcohol testing, alcohol impairment, and extrapolation of analytical results. Provide Annual Renewal training to Breath Alcohol Testing operators. Maintain Breath Alcohol Testing instrumentation. 5. Assist Trace Evidence/Fire Debris with technical reviews of casework. Assist Firearms Section with technical reviews of IBIS (Integrated Ballistic Identification System) casework. Houston Police Department Crime Laboratory (Houston, TX) September 1999 January 2001: Criminalist I/Evidence Technician 1. Receive, record, and enter evidence submitted to the laboratory for analysis. 2. Maintain evidence vault and evidence inventory 3. Prepare evidence for court and for destruction. United Chemical Technologies, Inc. (Bristol, PA and Houston, TX) March 1998 June 1999: Regional Sales Representative and Technical Support 1. Support customers in use of solid phase extraction products. Assist in method development for manual and robotic extraction techniques. Suggest proper extraction chemistry for new and novel compounds. 2. Provide technical support to users of specialty silanes and silicones. Recommend products for customer s specific applications.

2 Houston Police Department Crime Laboratory (Houston, TX) January 1990 February 1998: Criminalist II/Forensic Toxicologist/Technical Supervisor 1. Analyze biological specimens for the presence of alcohol, drugs, pesticides, poisons, or other toxic substances. Provide expert testimony regarding analyses performed and scientific interpretation of the results. 2. Develop analytical methods for new drugs or toxic compounds. Improve existing methods to increase recoveries or detection limits. 3. Provide training and assistance to Criminalists assigned to Toxicology Section. Provide Annual Renewal training to Breath Alcohol Testing operators. Provide training to Police Cadets, Police Officers, and District Attorneys in alcohol and drug impairment, impairment detection, and physiology and pharmacology of alcohol and drugs. 4. Supervise the Breath Alcohol Testing Program. Testify as an expert witness concerning scientific theory and operation of Intoxilyzer instruments, and pharmacology of alcohol. Insure program compliance with Texas Breath Alcohol Testing Regulations. Provide routine maintenance and calibration checks for the Intoxilyzers. Troubleshoot and repair malfunctioning instruments. 5. Analyze tablets, capsules, powders, liquids, and plant substances for the presence of dangerous drugs, controlled substances, or toxic substances. Provide expert testimony concerning analytical results and scientific interpretation of the results. North Harris County College (Houston, TX) November 1984 December 1989: Technical Supervisor/Breath Alcohol Testing Program 1. Supervise Breath Alcohol Testing Program for Harris County. Insure compliance with Texas Breath Alcohol Testing Regulations. Provide routine maintenance and calibration checks on breath test instruments. Troubleshoot and repair malfunctioning instruments. 2. Provide expert testimony concerning scientific theory and operation of the Intoxilyzer, interpretation of analytical results, and pharmacology and toxicology of alcohol. 3. Instructor at the initial certification school for Breath Test Operators. Provide training to Police Officers and District Attorneys concerning alcohol impairment, impairment detection, and alcohol physiology and toxicology. Premier Analytical Laboratories (Channelview, TX) July 1997 February 1998: Extraction Technician (Part Time, Evenings) 1. Extract and prepare urine specimens for confirmation testing. Document chain of custody. Follow SAMHSA and USDOT mandatory guidelines for workplace testing. 2. Perform daily and monthly maintenance on Hewlett-Packard GC/MS. Document maintenance and repairs performed. 3. Prepare buffer solutions, internal standard solutions, calibration standards, and extraction solvents for laboratory use.

3 ISA Associates (Alexandria, VA and Houston, TX) October 1998 July 1999: Research Associate (Part time weekends) 1. Collect urine specimens from volunteer donors. Maintain record of identification numbers and test results. 2. Perform screening tests on submitted specimens using five different drug screening test kits. Submit positive results for confirmation testing. 3. Train and supervise Police Officers in the use and interpretation of results SPECIALIZED TRAINING Intoxilyzer M4011AS-A Operation and Maintenance November 1984, CMI, Inc, Denver, CO Intoxilyzer Operator Certification School December 1984, San Antonio College, San Antonio, TX Supervision of Breath Tests for Intoxication Programs December 1984, Indiana University, Bloomington, IN Advanced Intoxilyzer Repair and Maintenance July 1985, Texas Department of Public Safety (TX DPS), Austin, TX Intoxilyzer M5000 Operation and Maintenance August 1988, CMI, Inc & TX DPS, Austin, TX Tests for BAC in Highway Safety Programs December 1988, Indiana University, Bloomington, IN Horizontal Gaze Nystagmus and Standardized Field Sobriety Testing August 1991, National Highway and Traffic Safety Administration, Houston, TX Basic Drug Identification and Screening August 1991, NHTSA, Houston, TX Drug Recognition and Evaluation February 1992, NHTSA, Houston, TX International Symposium on Forensic Toxicology June 1992, FBI Academy, Quantico, VA Drug Impaired Performance October 1993, SOFT Conference Workshop, Tempe, AZ Physiology and Pharmacology of Alcohol: Forensic Science Aspects February 1994, Dr. A.W. Jones, Ph.D., TX DPS, Austin, TX Intoxilyzer M Series Instrument Maintenance, Repair, Operation, and Calibration August 1994, CMI, Inc, & TX DPS, Austin, TX Interpretation of Mass Spectra November 1994, SWAFS Conference Workshop, Houston, TX Polaroid School of Law Enforcement Imaging, Basic Theories and Principles November 1995, HPD Lab, Houston, TX Fundamentals of UV Spectroscopy April 1996, SAT Conference Workshop, Overland Park, KS Solid Phase Extraction April 1997, SAT Conference Workshop, San Antonio, TX New Drugs and New Detection Methodologies April 1998, SAT Conference Workshop, Dallas, TX

4 GHB/Rohypnol October 1998, SWAFS Conference Workshop, Little Rock, AR Texas Association of Firearms and Toolmark Examiner Training Class April 2001, TX DPS, Austin, TX Crime Scene Search May 2001, Harris County Sheriff s Academy, Houston, TX Under Water Crime Scene Investigation June 2001, Galveston PD Dive Team, Galveston, TX TWGFEX Symposium on Fire and Explosion Debris Analysis and Scene Investigation August 2001, National Center for Forensic Science, Orlando, FL Fluorescein Techniques for Enhancing Latent Blood Stains September 2001, HCSO Academy, Houston, TX Tape Analysis Workshop September 2001, MAFS Conference Workshop, Minneapolis, MN Fabric Impressions Workshop September 2001, MAFS Conference Workshop, Minneapolis, MN Texas Association of Firearms and Tool Mark Examiners Workshop October 2001, TX DPS, Austin, TX Fluorescein Techniques November 2001, Advanced Forensic Training Institute, Houston, TX National Integrated Ballistic Information Network Training March 2002, Houston PD Lab Firearms Section, Houston, TX Texas Association of Firearms and Tool Mark Examiners Workshop April 2002, TX DPS, Austin, TX Basic Fire Debris Analysis School June 2002, National center for Forensic Sciences, Columbus, OH Intoxilyzer 5000 EN Training April 2003, TX DPS, Austin, TX Forensic Chemist Seminar July 2005, DEA, Washington, DC The Effects of Drugs on Human Behavior April 2006, Indiana University, Bloomington, IN Customized Forensic Microscopy June 2006, McCrone Research Institute, Houston, TX GC/MS Acquisition and Quantitation August 2006, Agilent Technologies, Houston, TX Gunpowder and Gunshot Residue School September 2007, FBI Laboratory, Firearms-Toolmarks Unit, Pasadena, TX The Robert F. Borkenstein Course on Alcohol and Highway Safety: Testing, Research, and Litigation December 2008, Indiana University, Bloomington, IN Effects of Drugs on Performance Behavior in DUID Cases May 2009, SOFT/AAFS/HCME, Houston, TX

5 PUBLIC AND PROFESSIONAL PRESENTATIONS DWI and the Intoxilyzer A Panel Discussion (Invited Speaker) August 1991, Texas District and County Attorney s Association, Galveston, TX DWI Awareness (Invited Speaker) February 1990, Exxon Real Estate, Houston, TX December 1991, Schlumberger Well Services, Houston, TX December 1992, Shell Westhollow Technology Center, Houston, TX July 1996, Glenbrook Valley Citizens on patrol, Houston, TX A DWI Involving Ketamine (Author and Presenter) November 1992, SAT Conference, San Angelo, TX Drug Recognition and Evaluation Workshop (Organizer and Presenter) May 1993, SAT Conference, Houston, TX Would Derek Really Have Wanted It This Way? Another Final Exit : An Apparent Suicide Involving Propofol (Author and Presenter) April 1994, SAT Conference, Arlington, TX Three Case Histories Involving Unusual Herbal Remedies (Author and Presenter) April 1995, SAT Conference, Austin, TX A DWI Involving Methanol April 1996, SAT Conference, Kansas City, KS June 1996, Alcohol Testing Alliance Conference, Dallas, TX GHB: A Brief Review With A Few Case Histories November 1996, SAT Conference, Oklahoma City, OK Introduction to Forensic Science and Scientific Evidence (Invited Speaker) January 1997, Prof. E.J. Imwinkelried, University of Houston, Houston, TX A Comparison of Near-Simultaneous Breath, Blood, Urine, and Serum Alcohol Concentrations: A Few Preliminary Observations (Author and Presenter) April 1997, SAT Conference, San Antonio, TX June 1997, Alcohol Testing Alliance Conference, Dallas, TX Gamma-Hydroxy Butyrate: Manufacture and Analysis (Co-Author and Presenter) May 1996, Harris County Organized Crime Narcotics Taskforce, Houston, TX July 1997, Clandestine Laboratory Investigator s Association, San Antonio, TX Introduction to the Forensic Laboratory (Invited Speaker) October 1995, ACS Student Chapter, Texas A&M University, College Station, TX March 1997, ACS Student Chapter, Texas A&M University, College Station, TX May 2010, ACS Student Chapter, University of Houston, Houston, TX May 2012, Prof. Manfred Fink, University of Texas, Austin, TX May 2012, ACS Student Chapter, University of Houston, Houston, TX An Overview of Forensic Alcohol testing and DWI Detection (Invited Speaker) March 1998, Prof. Manfred Fink, University of Texas, Austin, TX November 1998, Prof. Manfred Fink, University of Texas, Austin, TX March 1999, Prof. Manfred Fink, University of Texas, Austin, TX A Review of Blood Breath Partition Ratio and Breath Testing (Co-author and presenter) August 2011, Alcohol Testing Alliance Conference, Tyler, TX

6 PUBLICATIONS Frommhold, Sebastian An Apparent Suicide Involving Propofol, Toxi-News, 14 (1), 3, 1995 Frommhold, Sebastian and Busby, Claudia GHB: A Brief Review And A Few Case Histories, SWAFS Journal, 18 (2), 5, 1996 Frommhold, Sebastian Gamma-Hydroxy Butyrate (GHB): What s The Scoop?, Toxi-News, 16, (1), 3, 1997 Frommhold, Sebastian A DWI Involving Methanol, Journal of the Alcohol Testing Alliance, 2, (1), 19, 1997 PROFESSIONAL AFFILIATIONS Southwestern Association of Toxicologists (Not Currently a Member) June 1994 June 1995 Counselor (Partial Term) June 1996 June 1997 President-Elect June 1997 June 1998 President June 1998 June 1999 Past-President Southwestern Association of Forensic Sciences (Not Currently a Member)