2nd exam Flashcards
(16 cards)
BAC vs Brac
BAC: is a metric of alcohol intoxication, sometimes also known blood alcohol concentration. measures ethanol.
BrAC: takes the expelled blood evaporation measures 2100 to one base and measures that in BAC in 100g/ml in blood.. follows widmark equation
elimination of alcohol in body
elimination occurs: in urine, feces, sweat, breath, saliva, tears and milk. parent drug usually small.
Metabolism
occurs mainly in the liver and can increase fairly in different individuals.
distribution
drugs begin to have effect on the behavior after they begin to reach the brain.
absorption
instantaneous if smoked or injected, longer if ingested.
field sobriety test
Horizontal gaze nystagmus: observation of a suspects pupil as it follows a moving object. looking for smoothness, distinct and sustained nystagmus and its onset of 45 degrees. depressants can cause this, and scientific as muscle memory doesn’t cause this.
WAT: walk and turn to test for lack of balance. take nine steps in heel to toe fashion, as you are turning the officer looks for , 1) whether you are unable to maintain your balance while listening to the officer’s instructions; (2) whether you begin walking before the officer has completed the instructions; (3) whether you stop while walking in order to regain your balance; (4) whether you actually touch your feet heel-to-toe; (5) whether you use your arms to maintain your balance; (6) whether you lose your balance while turning; and (7) whether you take an incorrect number of steps.
One leg stand: testing, listening and standing counting and balance. point toe and count to 30, wont do if off kilt.
NHTSA approved. testify in district or circuit courts. 250 subpeaonas a year.
super drunk
.17 g/ml first time offense.
medical marijuana
legal card must be present and can be an impaired offense.
ethanol
takes about 4 drinks in an empty stomach to get to .08g/ml. food in stomach in usually slows absorption.elimination is almost always steady.
THC vs 11-OH-THC vs THC-COOH
THC is detectable in blood up 6 hours after first inhale.THC-COOH detectable in urine for days.(weeks?)
Canabaniod impairment due to oxidation and metabolism: alters sense of time and space. weaving, driving slowly, slower reaction time.
drugs
56%are THC cases. annual cases are 22,000 drug and alcohol. alprazolum is 24%. alcohol 12 and cocain is 10.
MSP
paramilitary, civilians enlisted, specialized training like Canine, training and precision driving.
Impaired driving
any controlled substance other than a schedule 1. or alcohol
bath salts
synthetic cathinones, MDPV, has extremem agitation and paranoia, heart palpation, excessive speed while driving. .
Toxicology units
do: analyze biological samples of for presence of alcohol and drugs. analyze beverages for presence of alcohol. testify to findings in court.
Don’t: testifying to effect of drugs on an individual, determine cause manner of death, determine culpability of individuals.
instrumentation of drug testing
solid phase extraction, gas chromtography mass spectography,