Drugs (Chapter 9: Criminalistics) Flashcards

1
Q

Psychological Dependence (Definition)

A

The conditioned use of a drug caused by underlying emotional needs (Criminalistics, Saferstein).

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2
Q

Physical Dependence (Definition)

A

Physiological need for a drug that has been brought about by its regular use. Dependence is characterized by withdrawal sickness when administration of the drug is abruptly stopped (Criminalistics, Saferstein).

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3
Q

Narcotic (Definition)

A

Analgesic or pain-killing substance that depresses vital body functions such as blood pressure, pulse rate, and breathing rate. The regular administration of narcotics will produce physical dependence (Criminalistics, Saferstein).

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4
Q

Analgesic (Definition)

A

A drug or substance that lessens or eliminates pain (Criminalistics, Saferstein).

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5
Q

Hallucinogen (Definition)

A

A substance that induces changes in mood, attitude, thought, or perception (Criminalistics, Saferstein).

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6
Q

Depressant (Definition)

A

A substance used to depress the functions of the central nervous system. Depressants calm irritability and anxiety and may induce sleep (Criminalistics, Saferstein).

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7
Q

Stimulant (Definition)

A

A substance taken to increase alertness or activity (Criminalistics, Saferstein).

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8
Q

Anabolic Steroids (Definition)

A

Steroids that promote muscle growth (Criminalistics, Saferstein).

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9
Q

Screening Test (Definition)

A

A test that is non-specific and preliminary in nature (Criminalistics, Saferstein).

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9
Q

Confirmation (Definition)

A

A single test that specifically identifies a substance (Criminalistics, Saferstein).

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10
Q

Marquis Test (Reagent)

A

2% formaldehyde in sulfuric acid

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11
Q

Marquis Test (Results)

A

Purple: presence of heroin/morphine/most opium derivatives

Orange-Brown: ampetamines and methamphetamine

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12
Q

Dillie-Koppanyi (Reagent)

A

1% cobalt acetate in MeOH is added to unknown substance, followed by 5% isopropylamine in MeOH

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13
Q

Dillie-Koppanyi (Results)

A

Violet-blue for barbituates

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14
Q

Duquenois-Levine (Reagent)

A

A: 2% vanillin and 1% conc. HCl in EtOH
B: conc. HCl
C: chloroform

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15
Q

Duquenois-Levine (Results)

A

Purple in chloroform layer for marijuana

16
Q

Van Urk (Reagent)

A

1% p-dimethylaminobenzaldehyde in 10% conc. HCl and EtOH

17
Q

Van Urk (Results)

A

Purple-Blue for LSD

18
Q

Scott Test (Reagent)

A

A: 2% cobalt thiocyanate in water and glycerin
B: conc. HCl
C: chloroform

19
Q

Scott Test (Results)

A

A (cobalt thiocyanate) will turn blue in the presence of cocaine. Solution will turn pink upon addition of HCl. Chlorform layer (C) will turn blue again.