Razor blade
The razor blade was cleaned and the contents viewed under a microscope at X60 magnification.
It revealed hair fragments and epithelial tissue (skin flakes).
What type of evidence can be collected from the flakes of skin found in the razor?
Can DNA tests be conducted from the hair fragments found in the razor?
The hair fragments were viewed at 200X magnification.
The results are shown on the right.
What is the hair colour of the second occupant?
Does he show any signs of grey hair?
Is he likely to be more than 30 years old?
