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10. Intoxicated Driver and Standardized Field Sobriety Testing. TCLEOSE LEARNING OBJECTIVES 07/29/04. Unit Goal: 10.1. Demonstrate and apply a working knowledge of the detection, apprehension and arrest of the intoxicated driver.
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10. Intoxicated Driver and Standardized Field Sobriety Testing TCLEOSE LEARNING OBJECTIVES 07/29/04
Unit Goal: 10.1. Demonstrate and apply a working knowledge of the detection, apprehension and arrest of the intoxicated driver.
10.1.1. Explain the laws related to driving while intoxicated and related offenses.
Laws for DWI and related offenses: • Definitions - PC 49.01 • Alcohol concentration - PC 49.01(1) also TC 522.003(2) • Intoxicated - PC 49.01(2) • Motor vehicle - PC 49.01(3) • Watercraft - PC 49.01(4)
Consumption or possession of alcoholic beverage in motor vehicle PC 49.03 • Driving while intoxicated PC 49.04 • Flying while intoxicated PC 49.05 • Boating while intoxicated PC 49.06 • Intoxication assault PC 49.07 • Intoxication manslaughter PC 49.08 • Enhanced offenses and penalties PC 49.09 • Officers duties for driver’s license suspension TC 524.011
10.1.2. Discuss the development of “reasonable suspicion” for the intoxicated driver stop/temporary detention. Refer to “Arrest, Search & Seizure” cases applicable to temporary detention.
Temporary Detention to investigate the possibility of DWI determined by:
Characteristics of vehicle operation.... • Weaving - lane-to-lane or bumping curb • Inconsistent speed fast and slow • Driver has fixed stare • Stops past or short of designated point at sign or signal • Fail to dim headlights • Wrong side of roadway or off pavement • Cut corner or left turn - wide right turn
Observation after stop • General appearance of driver - clothing, hair, eyes • Physical action of driver-balance, speech, walking (stagger, slow, unsure) turning (holds to something, trips on own feet), stepping on or off curb (unsure) • Attitude of driver - nervousness, resistant, cockiness, extra cheerful - everything is funny, sad, depressed, drowsy • Condition of vehicle - disarray of vehicle interior, damage to vehicle, mechanical defects (did they cause erratic driving) alcoholic beverages, drugs, or containers (poor evidence but might be grounds for questioning)
10.1.3. Describe standardized field sobriety testing methods and determine when chemical tests can be requested.
Field Tests • Horizontal gaze Nystagmus • Index finger to nose test • Walk heel to toe test • One leg stand test • Modified position of attention test
If a person is obviously intoxicated, do not give test which could result in injury.
Diabetes, epilepsy, shock, and other pathological conditions have symptoms similar to intoxication. Rule out these other possibilities before categorizing someone as intoxicated.
Chemical Tests • Applicability TC 724.002 • Consent to taking of specimen TC 724.011 • Taking of specimen TC 724.012 • Prohibition on taking specimen if person refuses; exception TC 724.013 • Person incapable of refusal TC 724.014 • Information provided by officer before requesting specimen TC 724.015
Breath specimen TC 724.016 • Blood specimen TC 724.017 • Furnishing information concerning test results TC 724.018 • Additional analysis by request TC 724.019 • Statement requested on refusal TC 724.031 • Officer’s duties for license suspension; Written refusal report TC 724.032
10.1.4.Recognize and prepare necessary forms concerning the intoxicated driver. • The DIC-24 form • The DIC-23 form • The D.W.I. case report form • The T.L.E.-51 form
10.1.5. Identify the laws regarding allowing dangerous drivers to borrow motor vehicles and forfeiture. • Allowing dangerous driver to borrow motor vehicle TC 705.001 • Forfeiture of vehicle TC 704.001
Unit Goal 10.2. Demonstrate and apply a working knowledge of Standardized Field Sobriety Testing (SFST) techniques.
10.2.3. Demonstrate their pre-training knowledge of course topics.
10.2.1. Describe the frequency of DWI violations and crashes.
10.2.3. Describe the relationship between Detection and General Deterrence.
Describe the physiologic processes of absorption, distribution and elimination of alcohol in the human body.
Unit Goal 10.4. Overview of Detection, Note Taking and Testimony
10.5.2. Describe the observed cues clearly and convincingly.
10.6.2. Describe the observed clues clearly and convincingly.
10.7.1. Describe the role of psychological and preliminary breath tests.
10.7.2. Describe the concepts of divided attention and nystagmus.