Statistical Assessment of the Probability of Correct Identification of Ignitable Liquids in Fire Debris AnalysisMarch 19, 2015 8:09 am | by Michael Sigman, Mary Williams and Erin Waddell, NIJ | Comments
The results of this research provide the first large-scale demonstration of statistically reliable classification rates for fire debris as positive or negative for ignitable liquid residue.
A defense expert said in dramatic testimony that he wouldn't classify the death of a young girl as a homicide even though her grandmother is accused of running her to death, yet he agreed the child wouldn't have died without exhausting physical exertion.
Some major changes in DNA technology and analysis have recently come on to the forensic scene – but with little fanfare to accompany those changes, busy practitioners could be forgiven for not having noticed them.
Forensic scientists are now trying to harness the “necrobiome." Bugs living upon and within a body could harbor vital clues about the circumstances of its demise. And it’s not just the dead that may reveal their secrets through their bugs: microbial fingerprints might also be used in rape or sexual assault cases, to provide police with vital leads about the identity of the assailant.
The jury in the Boston Marathon bombing trial on Wednesday saw two unexploded pipe bombs that prosecutors contend Dzhokhar Tsarnaev hurled at police officers during a gunfight on a dark suburban street four days after the bombings.
Validation of Forensic Characterization and Chemical Identification of Dyes Extracted from Millimeter-Length FibersMarch 18, 2015 11:47 am | by Stephen Morgan, NIJ | Comments
The ubiquitous nature of textile fibers provides an information-rich evidence source for crime scene investigations. However, in cases of similarly dyed fibers, current fiber analysis techniques do not provide adequate chemical information for unambiguous match determinations to be made.
In the 18 months since the Silk Road online black market for narcotics was taken down by a swarm of three-letter agencies, a site known as Evolution has taken its place at the top of the dark web drug trade. Now Evolution, too, has suddenly dropped off the face of the internet. But unlike its Silk Road predecessor, there’s no indication that law enforcement took down the newer black market.
Health insurer Premera Blue Cross revealed recently that it has discovered a sophisticated cyber attack that tried to gain unauthorized access to their IT systems.
Android and iOS mobile apps are still vulnerable to the recent FREAK attacks. Patching browsers may have made them safe, but FireEye has reported that the Android and iOS platforms and apps are still open to encryption manipulations.
A group of researchers from Princeton University and ETH Zurich have found yet another way to deanonymize Tor users.
New and subtle business models are emerging for cyber criminals, boosting their sales of stolen data and offering new ways to inflict damage on target organizations.
Most Americans have not altered their online behavior since the revelations almost two years ago by former National Security Agency contractor Edward Snowden, according to a survey by the Pew Research Center.
A bill that has passed the House and is awaiting action in the Senate would require DNA collected in any felony case charged as a violent or sex offense to be preserved through the length of the offender's sentence, including post-prison community custody.
Broadly speaking, digital evidence is information found on a wide range of electronic devices that is useful in court because of its probative value. It’s like the digital equivalent of a fingerprint or a muddy boot.
DNA testing could help identify the bodies found in mass graves on a KwaZulu-Natal farm in South Africa - but only if living relatives came forward for tissue samples to be compared, said a genetics expert.