hair samples

Locks for testing

Hair samples are strands of hair collected for analysis or testing.

Drug tests commonly use hair samples because substances remain detectable in hair longer than in blood or urine: The lab requires a hair sample from the back of the head.

Forensic investigators collect hair samples from crime scenes for DNA analysis.

Hair samples also appear in medical diagnostics and scientific research.

Related

crime scene · cold case · evidence · scalp · brush · root · keratin · specimen · lab · lab results · microscope · analysis · collection · genetic · testing · drug test · crime · identity

Categories
Opposites
type of biological sample

hair samplesblood samples

Extracted bodily fluid portions

saliva samples · stool samples · vitreous humor · tissue samples · skin samples

evidence permanence

hair samplesblood evidence

Biological material from crimes

perspiration · tears

Family

hair, sample, hairs, samples, haired, hairy, hairless, hairiness, sampled

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G