slc pages 19-29

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26 Terms

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Post-mortem interval
The time elapsed since a person has died.
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Modus Operandi (MO)
The habitual method or way a particular criminal operates.
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Signature
The unique personal expression or imprint a killer leaves at the crime scene.
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Organized Offender
An offender who plans their crimes carefully and leaves little evidence.
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Disorganized Offender
An offender who acts impulsively with little to no planning, leaving more evidence.
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Toxicity
The level of harmful effects a substance can have, depending on dosage, duration, by-products, and type of exposure.
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Chronic Poisoning
Long-term exposure to low doses of a substance.
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Acute Poisoning
Short-term exposure to high doses of a substance.
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Presumptive Testing
Initial tests that indicate the presence of a substance but do not confirm its identity.
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Confirmatory Testing
Tests that definitively identify a substance.
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Cyanide Poisoning
A poisoning that leads to rapid breathing, headache, and potentially death.
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Carbon Monoxide Poisoning
A poisoning caused by inhaling carbon monoxide, leading to oxygen deprivation in the body.
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Serial Killer
A person who commits a series of two or more murders.
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Forensic Entomology
The study of insects in relation to criminal investigations, particularly to determine time of death.
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M'Naghten Rules
Legal rules assessing a defendant's mental state during a crime to determine insanity.
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Fungibility
The property of a substance whereby it is easily interchangeable with another unit.
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Psychological Profiling
The assessment of a criminal's personality and behavior patterns, aiding in criminal investigations.
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Drug Classification - Narcotics
Drugs that treat pain but can lead to dependence.
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Drug Classification - Depressants
Drugs that slow down body functions and relieve anxiety.
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Drug Classification - Stimulants
Drugs that increase energy and alertness.
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Drug Classification - Hallucinogens
Drugs that impact perception and cause hallucinations.
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Schedule I Drugs
Substances with no accepted medical use and a high potential for abuse.
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Schedule II Drugs
Substances with a high potential for abuse, possibly leading to severe dependence.
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Schedule III Drugs
Substances with moderate to low potential for dependence.
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Colorimetric Testing
A method that produces a color change to indicate the presence of a specific substance.
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Thin-Layer Chromatography (TLC)
A technique used to separate compounds based on their chemical properties.