it is impossible to obscure serial numbers.

true
false
question 2 true/false

any wet clothing from a victim should be air dried before it is packaged.

true
false
question 3 true/false

a tool suspected of being used at a crime scene should be tried out in a tool mark to see if it fits.

true
false
question 4 true/false

bullets have only class characteristics, not individual characteristics.

true
false

there's more questions coming.