Daily Archives: September 29, 2014

Donetsk to Ask Russia to Analyze DNA Samples From 400 Bodies

DonetskDONESK, September 29 (RIA Novosti) – The authorities of the self-proclaimed Donetsk People’s Republic (DPR) will request Russia to analyze DNA samples taken from 400 unidentifiable bodies, the republic’s first deputy prime minister said Monday.

WVSP crime lab: Rape kit backlog a solvable problem

Helix3Evidence from about 250 sexual assault cases dating back to 2011 sits in storage at the West Virginia State Police crime lab in South Charleston, waiting to be tested.

NSW Police take DNA from hundreds of ex-offenders to build crime-solving database

silver HelixPolice are planning to take a further 2,000 samples over the next 12 months, adding to 1,000 already collected, to build a comprehensive DNA database.

Application of Proteinases for DNA Isolation of Challenged Bone Specimens

Helix4Forensic analysis of DNA from bone can be important when investigating cases involving violent crimes or missing persons. To remove the potential presence of commingled remains and to eliminate contaminants that interfere with forensic DNA analysis, the outer surface of the bone fragment must be cleaned—a labor‐intensive and time‐consuming step. A simpler, more reliable processing method is needed. This study evaluates two methods for processing bone specimens before their DNA is isolated: mechanical sanding and enzymatic trypsin.

Improved Tools for the Robust Analysis of Low Copy Number and Challenged DNA Samples

Blue and black helixLow copy number (LCN) typing is a general technique used for analyzing low-quantity DNA samples. Short tandem repeat (STR) testing on aged and extremely limited samples, such as “touch DNA” samples, has increased over the past decade. Samples with low quantities of template DNA are typically subjected to exaggerated stochastic effects during the polymerase chain reaction (PCR) that impact the reproducibility and reliability of DNA typing results.