TRACE EVIDENCE

KEY

• I would talk to a locksmith to determine what type of lock it fits.
• If it is a mailbox key, we could have a name and address.

SOIL

• I would speak to a pedologist.
• The soil could have been stuck to the suspect's shoe. The pedologist could tell us where this particular kind of soil can be found.

TWIST TIE

• You can go to a local bagel seller or bakery and ask if they use the same twist tie.
• You could look through a list of customers and possibly find suspect.

CHEWED GUM

• DNA analyst
• Whoever was chewing this gum definitely left some of their DNA in it. A DNA comparison can narrow down suspects.

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