Citat:
Ursprungligen postat av
Mogna-Meloner
Finns det artiklar eller länkar om detta med att man via hårstrån eller naglar kan bestämma vilken dag man intog drogen?
Vilka droger som vanligt folk har tillgång till syns i hårstrån eller naglar?
"The first case of the determination of poison in human hair was published in the 1850s and reported the presence of arsenic in the hair of a body exhumed after 11 years. After almost 100 years, in 1954, the detection of barbiturate in an animal model study (guinea pig hair) was reported."
http://www.forensicmag.com/article/2013/09/hair-analysis-forensic-toxicology
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"You’re probably aware that most of your hair is ‘dead’. Only the follicle below the skin is alive – this is the part used for DNA testing in other forensic fields. In forensic toxicology, however, the dead part of the hair can reveal a wealth of information. In fact, by analyzing your hair, a forensic toxicologist can recreate the history of your interactions with chemicals, drugs and toxins."
http://www.okorieokorocha.com/forensic-toxicology-and-hair-analysis/
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"Hair and Nails - Hair specimens, usually taken from the back of the head, can be used to test for exposure to heavy metals and drugs over a period of weeks to months. Hair is predominantly used to test for drugs such as amphetamines, cocaine, marijuana (THC) and heroin, and more recently tests have been created to determine if the deceased was drinking heavily in the last few months before death. Drug analysis can also be done on finger- and toenails in order to provide an even longer potential window of exposure than hair. However, relatively little is known about how the nails process toxins, so interpretation of results is more difficult. Hair is subject to external contamination issues that can mitigate its value, so special sample preparations in the lab may be needed for a given case."
http://www.forensicsciencesimplified.org/tox/how.html