1. Drugs and Poisons in Crime Illegal Drug Trade ($6.7 billion annual in Australia) -Marijuana -Heroine -Cocaine -Alcohol & Cigarettes -Pharmaceutical drugs

2. Drugs and Poisons in Crime Most 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

3. 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?

4. Toxins Toxins 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.

5. 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”

6. 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

7. Webquest ChemicalLethal doseResponse Alcohol Caffeine THC (cannabis) One other of your choice? What chemicals in our food can become toxins?