Detecting Drug Use in Hair
News Aug 11, 2016
Drug use is only evident for a brief time in blood and urine. Traces of drugs are present in hair for longer periods.
Scanning a lock of hair over its entire length results in a detailed timeline of the person's drug use, sometimes going back months in the past. Within an hour, it is possible to determine whether someone has taken a drug such as cocaine, amphetamines or cannabis – and when they took it. This method can provide evidence in court cases and reveal the use of doping in humans and prohibited growth agents in livestock. This is one of the ways in which Wageningen UR works on the quality of life.
Forensic Facial Reconstruction Could Now Look to Your DNANews
Researchers have identified fifteen genes that determine our facial features. The potential applications are numerous. Doctors could use DNA for skull and facial reconstructive surgery, forensic examiners could sketch a perpetrator’s face on the basis of DNA retrieved from a crime scene, and historians would be able to reconstruct facial features using DNA from days long gone.READ MORE
Putting Statistics into Forensic Firearms IdentificationNews
During criminal investigations, firearms examiners can offer an expert opinion as to whether two bullets or cartridge cases match, However, they cannot express the strength of the evidence numerically, the way a DNA expert can when testifying about genetic evidence. Now, a team has developed a statistical approach for ballistic comparisons that may enable numerical testimony.READ MORE
Gene Expression Patterns Can Determine Time of DeathNews
Changes in the production of genes can be used to time a person cause of death to a high degree of accuracy, a new study suggests.READ MORE