Trace Evidence

1. Key

• Contact Locksmith
• Used to find mail that can link to a name or address to solve the case

2. Gunpowder Residue

• Contact Ballistics Expert
• Used to match to suspect or gun

3. Twist Tie

• Companies that manufacture twist ties
• Used to see what the twist tie came off of
• A suspect could have bought that product

4. Gum

• Contact a lab for saliva DNA
• DNA could be linked back to suspect

5. Lip Stick

• Contact make-up companies
• Compare products
• Link company/product to suspect

6. Copper Wire

• Contact Electrician or metal specialist
• Suspect may have been doing electrical work
• They could have dropped it at the scene

7. Fingernail Clipping

• Contact lab for DNA
• DNA can lead to suspect
• It can be linked to a suspect if they have a chipped nail

8. Hair

• Contact lab for DNA/characteristics
• DNA/hair characteristics can lead to suspect

9. Old Banana Peel

• Cotact lab for DNA
• DNA found on the banana peel can link the suspect to the crime

10. Burned Match

• Contact local stores that sell matches and compare
• Identify if suspect has purchased that match brand

11. Blood Soaked Towel

• Contact DNA lab to identify the type of blood
• Find similar characteristics with the suspect's blood and the blood found of the towel/rag

12. Paint Chipping

• Contact hardware stores/companies that make paint
• A suspect might be a painter and could have shed the paint product at the crime scene

13. Wood Shaving

• Contact carpenter and wood manufactures to discover the type of wood
• It could link a suspect if they are involved with carpentry or construction
• They could leave the evidence at the crime scene

14. Rice

• Contact DNA lab
• DNA can be linked to suspect

15. Button

• Contact clothing/button companies
• Identify a suspects clothing purchases and if they are missing buttons on their clothes