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Drugs and Poisons in Crime
Illegal Drug Trade ($6.7 billion annual in Australia)- Marijuana- Heroine- Cocaine- Alcohol & Cigarettes- Pharmaceutical drugs
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Drugs and Poisons in CrimeMost cases of poisoning are accidents, such as drug overdoses or people accidentally drinking weedkiller.
Exposure to poisons- Ingest (swallow)- Eyes- Skins- Inhalation- Bite or sting
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Drugs and Poisons• Drugs and poisons are referred to as toxins.• Toxicologists: Forensic specialists that look for toxins –
alcohol, drugs and poisons – in human blood, urine, and flesh.
What is a toxin?
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ToxinsToxins are any chemicals that pose a risk to human health.
Chemicals are in everything we consume, including the food we eat and the water we drink. • pesticides• antibiotics• hormones
Any chemicals can become toxic in the right dose.nerally dose.
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The Dose Response Principal
A dose is the amount of exposure to a chemical. Response is the reaction to the dose.
“The dose makes the poison”
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The Dose Response Principal
The effect of a toxin depends on:• The dose (amount of chemical)• The concentration (how strong it is)• The length of exposure• The individual being exposed
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Webquest
Chemical Lethal dose Response
Alcohol
Caffeine
THC (cannabis)
One other of your choice?
What chemicals in our food can become toxins?