analysis
analyzing
biotechnology
blood
butt
cigar
cigarette
collecting
crime
criminal
criminologist
criminology
detective
dna
doctor
evidence
examination
examining
experiment
expert
fingerprint
forensic
forensics
fragment
glove
identity
inspector
investigating
investigation
investigator
lab
laboratory
man
mask
microbiology
murder
police
proof
protection
research
researcher
sample
scientific
scientist
spray
spraying
technology
test
trace
tweezers