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.nerallydose.

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 What chemicals in our food can become toxins?