1. DNA Profiling

2. What is DNA? DNA stands for Deoxyribo-Nucleic Acid –A chemical found in every cell of our bodies –Carries genetic information from one generation to the next –It determines our physical characteristics like hair and eye colour –The genetic information is in the form of a chemical code or language

3. UK National DNA Database DNA is collected from crime scenes and can be matched to individuals to prove that they were in a particular place The UK has more of its citizens’ DNA recorded than any other country – 4 million samples. People arrested on suspicion of a crime have DNA samples taken and recorded. These are kept even if they are subsequently found innocent.

4. DNA and your family Each person’s DNA is unique: no one else has your exact DNA unless you have an identical twin. You inherit half your DNA from each of your parents. Brothers and sisters inherit different combinations of DNA from the same parents. They have DNA profiles that are quite similar. Forensic teams look at genes that vary widely amongst different individuals to match people to DNA samples taken at crime scenes

5. Look at the evidence We know that the group we are looking for have three family members: 2 male and one female. We have a name for one of them: Sam Heydouk Find the other two family members (who may use pseudo names) using the database Show the results of your searches using a database report – a template has been provided for you