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A Best Practices Review of Drug Detection for Court Professionals By: Paul L. Cary Toxicology Laboratory University of Missouri.

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Presentation on theme: "A Best Practices Review of Drug Detection for Court Professionals By: Paul L. Cary Toxicology Laboratory University of Missouri."— Presentation transcript:

1 A Best Practices Review of Drug Detection for Court Professionals By: Paul L. Cary Toxicology Laboratory University of Missouri

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3 Volume II ? – Fall 2014 n drug testing n data/evaluation n role of the team n ancillary services n caseload n addendum on legal

4 Best Practices n frequency of testing n random testing n witness collection & specimen integrity n custody & control n accurate results & confirmation n rapid turn-around time

5 The law is not black and white and neither is science. “.. there is a substantial gap between the questions that the legal community would like to have answered by drug testing and the answers that the scientific community is able to provide. The real danger lies in the legal community’s failure to “mind the gap” by drawing unwarranted inferences from drug testing results.”

6 Drug Testing Basics

7 Reasons for Drug Testing - WHY? n act as a deterrent to future drug use n identify participants who are maintaining abstinence n identify participants who have relapsed u rapid intervention u efficient utilization of limited resources n provides incentive, support and accountability for participants n adjunct to treatment & frames sanction decisions

8 Drug Testing Specimens n urine - current specimen of choice u generally readily available - large quantities u contains high concentrations of drugs u good analytical specimen u provides both recent and past usage n alternative specimens u breath u hair u sweat - patch test u saliva - oral fluids

9 When to Test? KEEP ‘ EM GUESSING ! KEEP ‘ EM GUESSING ! n effective drug testing must be n effective drug testing must be random u unexpected, unannounced, unanticipated u limit time between notification & testing n test as often as possible - n test as often as possible - twice weekly n consider use of multiple specimens (hair, saliva, sweat) n n testing frequency remains constant throughout program participation

10 Characteristics of a Good Drug Test: n scientifically valid u employs proven methods & techniques u accepted by the scientific community n legally defensible u able to withstand challenge u established court track record u scrutinized by legal/judicial review n therapeutically beneficial  provides accurate profile of client ’ s drug use u provides rapid results for appropriate response

11 Drug Testing Reality Check n When developing and administering your drug testing program assume that the participants you are testing know more about urine drug testing than you do! n Sources: u Internet u High Times magazine u other court clients

12 Client Contracts

13 The Importance of “Specificity” in a Client Contract: n “I understand......” n I will be tested for the presence of drugs in my system on a random basis according to procedures established by the Drug Court Team and/or my treatment provider. n I understand that I will be given a location and time to report for my drug test. n I understand that it is my responsibility to report to the assigned location at the time given for the test.

14 The Importance of “Specificity” in a Client Contract: n I understand that if I am late for a test, or miss a test, it will be considered as a positive test for drugs/alcohol and that I may be sanctioned. n I understand that if I fail to produce a urine specimen or if the sample provided is not of sufficient quantity, it will be considered as a positive test for drugs/alcohol and that I may be sanctioned. n I understand that if I produce a dilute urine sample it will be considered as a positive test for drugs/alcohol and that I may be sanctioned.

15 The Importance of “Specificity” in a Client Contract: n I have been informed that the ingestion of excessive amounts of fluids can result in a diluted urine sample and I understand that my urine sample will be tested to ensure the sample is not dilute. n I understand that substituting or altering my specimen or trying in any way to modify my body fluids for the purposes of changing the drug testing results will be considered as a positive test for drugs/alcohol and will result in sanctioning and may be grounds for immediate termination from drug court.

16 Challenging Urine Collection Strategies

17 The “witnessed” collection (for urine) n single most important aspect of effective drug testing program n urine collections not witnessed are of little or no assessment value n denial component of substance abuse requires “direct observation” collections of participants

18 Sample Collection: n pre-collection preparation u site selection F minimize access to water sources F use an area with a scant floorplan F find privacy & security u gather supplies beforehand u obtain proper collection receptacle n confirm ID n removal of outer clothing

19 Sample Collection: (continued) n wash hands prior to donation n “witness” collection u additional clothing removal u body inspection u squat and cough n label sample correctly n 61st District Court - Grand Rapids

20 Sample Collection: (continued) n accept sample & inspect u temperature (90-100˚ F) u color (no color  diluted ?) u odor (bleach, sour apples, aromatics, vinegar, etc.) u solids or other unusual particulates n store sample properly n forensic sample - custody documents

21 Drug Testing Methods

22 Two-Step Testing Approach n screening test – designed to separate negative samples from samples that are “presumptively” positive n confirmation test – follow-up procedure designed to validate positive test results u distinctly different analytical technique u more specific and more sensitive

23 Step One – Screening n often based on immunoassay technology n more drug – more binding - more “color” produced – more instrument detector response n numerous commercial manufacturers n designed for high throughput instrumentation or on-site devices

24 On-site DOA screening n often based on immunoassay technology n concept of color “switch” n “dynamic” versus “static” calibration n hand-held cassettes or test-cup devices n one test at a time - no batching n available in DOA panels or single drugs n numerous commercial manufacturers u differential sensitivity & selectivity

25 On-site Drug Detection: Follow package insert guidance exactly!

26 On-site Drug Detection: Intensity of band is NOT quantitative!

27 Step Two - Confirmation n gas chromatography-mass spectrometry GC/MS or LC/MS u drug molecules separated by physical characteristics u identified based on chemical “finger-print” u considered “gold standard” n other chromatographic techniques

28 Why confirm ? n Is it really necessary to confirm drugs that tested positive by initial screening tests? n Why can’t the court adjudicate cases based on the screening test results? n FALSE POSITIVES

29 Drug tests & cross reactivity: n screening tests can and do react to “non-target” compounds u amphetamines u benzodiazepines n obtain list of interfering compounds from lab or on-site test vendor n initial screening (“instant” tests) may only be % accurate n confirm positive results

30 Choosing a Drug Testing Laboratory n certifications – SAMHSA n CAP-FUDT (College of American Pathologists - Forensic Urine Drug Testing) u methodology, SOP, staff qualifications, quality assurance, security, etc. n turn-around time, result reporting formats n cost - $$$$ n customer service (access to expert advice) n ease of access - proximity, minimize sample handling n request current customer list

31 Choosing an On-Site Testing Device n FDA - approved n CLIA-waived (means nothing) n cost - $$$$ (BUT - you get what you pay for) n ease of use n appropriate cutoff levels n customer service (access to expert advice) n request current customer list n confirmation required

32 Interpretation of Drug Test Results

33 Negative or None Detected Results n indicates that no drugs or breakdown products (metabolites), tested for, were detected in the sample tested n no such thing as “zero” tolerance or “drug free” n negative does not mean NO drugs present

34 Negative/None Detected Interpretation n client is not using a drug that can be detected by the test Other possible explanations n client not using enough drug n client’s drug use is too infrequent n collection too long after drug use n urine is tampered n test being used not sensitive enough n client using drug not on testing list

35 Negative/None Detected Interpretation n no need to second-guess every “negative” result n not suggesting withholding positive reinforcement & rewards for positive behaviors n drug testing is a monitoring tool n assess none detected drug testing results in the context of your client’s overall program compliance (or non-compliance) and their life’s skills success (or lack thereof)

36 Positive Test Result Interpretation n indicates that drug(s) or breakdown products (metabolites), tested for, were detected in the sample tested n drug presence is above the “cutoff” level n greatest confidence achieved with confirmation n ALWAYS confirm positive results in original sample

37 Typical Cutoff Levels screening & confirmation n amphetamines *500 ng/mL 250 ng/mL n benzodiazepines300 ng/mL variable n cannabinoids * 20 & 50 ng/mL 15 ng/mL n cocaine (crack)*150 ng/mL 100 ng/mL n opiates (heroin) *300/2000 ng/mL variable n phencyclidine (PCP) * 25 ng/mL 25 ng/mL n alcohol20 mg/dL 10 mg/dL u * SAMHSA (formerly NIDA) drugs

38 What is a “cutoff” level ? n cutoffs are not designed to frustrate CJ professionals n a drug concentration, administratively established for a drug test that allows the test to distinguish between negative and positive sample - “threshold” n cutoffs provide important safeguards: u scientific purposes (detection accuracy) u legal protections (evidentiary admissibility) n measured in ng/mL = ppb

39 The Issue of Urine Drug Concentrations

40 Drug Tests are Qualitative n screening/monitoring drug tests are designed to determine the presence or absence of drugs - NOT their concentration n drug tests are NOT quantitative

41 Drug concentrations or levels associated with urine testing are, for the most part, USELESS ! n cannabinoids517 ng/mL n opiates negative n cocaine metabolite negative n amphetamines negative

42 The Twins A B 200 mg 8:00 AM Collect urine 8:00 PM 12 hours later

43 The Twins - urine drug test results AB Wonderbarb = 638 ng/mLWonderbarb = 3172 ng/mL

44 The Twins - urine drug test results AB physiological make up exact amount drug consumed exact time of ingestion exact time between drug exposure and urine collection AND YET.....

45 The Twins - urine drug test results AB Wonderbarb = 638 ng/mLWonderbarb = 3172 ng/mL Twin B’s urine drug level is 5 times higher than Twin A

46 Are any of the following questions being asked in your court? n How positive is he/she? n Are his/her levels increasing or decreasing? n Is that a high level? n Is he/she almost negative? n Is this level from new drug use or continued elimination from prior usage? n What is his/her baseline THC level? n Does that level indicate relapse? n Why is his/her level not going down? (or up?)

47 Urine drug concentrations are of little or no interpretative value. The utilization of urine drug test levels by drug courts generally produces interpretations that are inappropriate, factually unsupportable and without a scientific foundation. Worst of all for the court system, these urine drug level interpretations have no forensic merit. THE ISSUE

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49 Scientific Rationale n Technical Issues u testing not linear u tests measure total drug concentrations n Physiological u variability of urine output u differential elimination of drug components

50 THIS ? does 219 mean new use? 639 is really high for THC, isn’t it? 432 indicates he going up, right? 115 is down from yesterday, probably continued elimination? is 22 above the cutoff? don’t we need to consider relapse at 57? 307 – well she’s almost negative, correct? I think 1200 is a new record, isn’t it? 515 is much higher than last week, right?

51 OR THIS ? Negative or Positive

52 The Drug Detection Window

53 Drug Detection Times - by Drug (this is general guidance!) n amphetamines: up to 4 days n cocaine: up to 72 hours n opiates: up to 5 days n PCP: up to 6 days n barbiturates: up to a week n benzodiazepines: up to a week n.. then there’s alcohol & cannabinoids

54 Cannabinoid Detection in Urine n n Conventional wisdom has led to the common assumption that cannabinoids will remain detectable in urine for 30 days or longer following the use of marijuana. n n RESULT: u u delay of therapeutic intervention u u hindered timely use of judicial sanctioning u u fostered denial of marijuana usage by clients

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56 Cannabinoids - Recent/Relevant Research n 30+ day detection window often exaggerates duration of detection window n reasonable & pragmatic court guidance n detection time: at 50 ng/mL cutoff u up to 3 days for single event/occasional use u up to 10 days for heavy chronic use n detection time: at 20 ng/mL cutoff u up to 7 days for single event/occasional use u up to 21 days for heavy chronic use

57 Recent Cannabinoid Use versus Non-recent use (double sanction issue): n How do drug courts discriminate between new drug exposure and continued elimination from previous (chronic) use ? u an issue only in first phase of program u only drug that poses concern is cannabinoids u “two negative test” rule – two back-to-back negative drug tests post clean out

58 Opiates - Results Interpretation n screening tests - drug class assays n positive results indicate presence of opiates n most assays not reactive toward synthetic narcotic analgesics; meperidine (Demerol), propoxyphene (Darvon), methadone, pentazocine (Talwin), fentanyl (Sublimaze) n difficult to separate legitimate use from abuse n detection time: up to 4 days following therapeutic use of codeine or morphine

59 Alcohol - Results Interpretation n screening tests specific for ethanol, ethyl alcohol n positive results indicate presence alcohol n alcohol is rapidly cleared from the body n negative results don’t necessarily document abstinence n detection time = hours n example - person intoxicated at 11:00 PM, collect second urine sample of next day (11:00 AM), most likely test negative for alcohol

60 EtG & EtS – Strategy for Monitoring Alcohol Abstinence

61 Alcohol is the most commonly abused substance by court clients and the most difficult substance to detect in abstinence monitoring.

62 Advantages of Ethyl Glucuronide & Ethyl Sulfate n unique biological marker of alcohol use (no false positives) n direct marker indicating recent use n longer detection window than alcohol n stable in stored specimens (non-volatile) n is not formed by fermentation n is not detected in the urine of abstinent subjects

63 Extending the detection window

64 Advantages of Ethyl Glucuronide & Ethyl Sulfate n unique biological marker of alcohol use (no false positives) n direct marker indicating recent use n longer detection window than alcohol n stable in stored specimens (non-volatile) n is not formed by fermentation n is not detected in the urine of abstinent subjects

65 Disadvantages of EtG/EtS n testing available at relatively few laboratories n EtG testing more costly than abused drugs u expensive LC/MS/MS technology n introduction of new testing approaches n most significant concern – casual, inadvertent, environmental alcohol exposure causing positive results

66 Sources of “Incidental” Alcohol Exposure n OTC medications (Nyquil, Vicks Formula 44) n mouthwashes (Listermint & Cepacol) n herbal/homeopathic medications (i.e., tincture of gingko biloba - memory) n foods containing alcohol (such as vanilla extract, baked Alaska, cherries jubilee, etc.) n “non-alcoholic” beers (O’Doul’s, Sharps) n colognes & body sprays n insecticides (DEET) n alcohol-based hand sanitizers (Purell, GermX)

67 Is a positive urine EtG/EtS test result a definitive indicator of relapse or prohibited drinking? Is a positive urine EtG/EtS test result sufficient justification for client sanctioning?

68 Consensus Cutoffs: n EtG minimum of 500 ng/mL n EtS minimum of 100 ng/mL

69 Positive EtG Result (500 ng/mL) : n a result reported as EtG positive in excess of the 500 ng/mL cutoff is consistent with the recent ingestion of alcohol-containing products (1-2 days prior to specimen collection) by a monitored client n studies examining “incidental” exposure widely conclude that results in excess of the 500 ng/mL cutoff are not associated with inadvertent or environment ethanol sources

70 Negative EtG Result (500 ng/mL) : n a result reported as EtG negative is indicative of a client who has not ingested beverage alcohol within 1-2 days prior to specimen collection n a negative result is not proof of abstinence n advertised “80-hour” window of detection not “real-world” applicable

71 EtG/EtS- Specific Contract: n outlines the behavioral requirements and compliance standards necessary for continued participation in drug court n educate, alert and advise drug court clients of the potential (incidental) sources of alcohol that could produce a positive urine EtG/EtS test result n listing the numerous commercial products that contain ethyl alcohol and provides a list of substances to avoid while in a drug court program

72 Prohibited Items: n OTC medications n non-alcoholic beer & wine n foods that contain alcohol n alcohol-based mouthwashes n alcohol-based hand sanitizers n alcohol-based hygiene products

73 When in doubt, don’t use, consume or apply!

74 Best Practices for EtG/EtS Testing: n provide those being monitored with an alcohol use advisory document - EtG/EtS specific contract - mandatory n use appropriate cutoffs: u EtG ng/mL u EtS ng/mL n test for EtS (ethyl sulfate) - biomarker of choice

75 EtG/EtS Admissibility? n are EtG/EtS results legally admissible n Kelly-Frye, Daubert, Rule 703 n use of proper cutoffs 500/100 ng/mL n use of appropriate methodologies (LC/MS/MS for confirmation of positives) n use client contract n interpret results correctly n YES!

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77 Why Courts Should Use EtG/EtS

78 Prescription Drugs

79 Challenge with Prescription Drugs therapeutic use versus abuse therapeutic use abusevarious stages of misuse

80 Drug testing is an excellent tool for the abstinence monitoring of court clients, however it provides limited information for the differentiation between the appropriate therapeutic use of prescribed medications and the misuse/abuse of those same drugs - regardless of the specimen tested.

81 Client Signed Releases n doctors n dentists n other healthcare professionals n pharmacies

82 Healthcare Contact Form n form used by clients to document contact with healthcare professionals n clients required to use contact form for each visit where medications are being used during a procedure or prescribed for use n sanction for failure to use form n place requirement in client contract n client seek prior permission to see doctor

83 I (client name), am a participant in drug court. This program is a court monitored recovery program for addicts. As a result, I am subject to frequent and random drug testing. Therefore, I must report to the court my visit today. As I am in recovery, I would respectfully request that you take this into consideration and offer non-narcotic medications, if possible, when drugs are necessary for my medical treatment. Physician (Name) ______________________________________ Physician (Signature) _______________________________________ If you have any questions or concerns, please feel free to call the court and talk to my case specialists. If this patient fails to present this form to the nurse and physician prior to receiving medication or a prescription for medication, please notify the court. Please list the medications prescribed today:

84 Other Control Strategies n search & seizure (client contract) u car, home, possessions n pill counts n no out-of-state prescriptions n use of specified pharmacies n loss of completion credits/time while on certain prescription meds

85 Ten Principles of Drug Testing n n 1. Design an effective drug detection program, place the policies and procedures into written form & communicate to court staff and clients alike. n n 2. Develop a client contract that clearly enumerates the responsibilities and expectations of the court’s drug detection program. n n 3.Select a drug testing specimen & testing methodology that provides results that are scientifically valid, forensically defensible and therapeutically beneficial.

86 Ten Principles of Drug Testing n n 4.Ensure that the sample collection process supports effective abstinence monitoring practices; (random/unannounced selection & witnessed/direct observation sample collection) n n 5. Confirm of all positive screening results using alternative testing methods. n n 6. Determine the creatinine concentrations of all urine samples to identify tampering. n n 7. Eliminate of the use of urine levels for the interpretation of client drug use behavior.

87 Ten Principles of Drug Testing n n 8.Establish drug testing result interpretation guidelines that have a sound scientific foundation and that meet a strong evidentiary standard. n n 9.In response to drug testing results, develop therapeutic invention strategies that promote behavioral change and support recovery. n n 10.Understand that drug detection represents only a single supervision strategy in an overall abstinence monitoring program.

88 address: n


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