Forensic Science and Technology (ISSN:1008-3650)

Human intestinal tract accommodates the most varieties and quantity of microbes in human body, establishing the colonies of bacteria, viruses, fungi, archaea and eukaryotes that have come into being the so-called human gut microbiome (HGM). Evidently, HGM is characteristic of enormous amount of microbes, long-duration stability and liability of individual specificity, hence making it promising to arise as a novel biomarker for forensic personal identification. Factually, the explosion of microbiomics research occurred along with the availability of high-throughput sequencing in the last dec

Nitroglycerine (NG), also known as glyceryl trinitrate, can be used to make explosives and gunpowder. The NG-derived explosive is usually of great energetic power. At present, nitroglycerin is mainly determined with gas/liquid chromatography-mass spectrometry. However, nitroglycerin is prone to complete explosion, high heat sensitivity and easy volatilization, resulting in the existing laboratory technology difficult to detect the NG-derived explosive eligibly. Fortunately, fluorescence detection can have the NG-drived explosive residues determined sensitively and rapidly. Here, a set of ph

A survey was here carried out about high-falling cases so that the influential factors were able to explore on the time spent with the cases' scenes, purposing to provide a theoretical and practical basis for rapid investigation into the scenes of involving cases. The high-falling cases that occurred in the selected district from June 1st, 2014 to May 31th, 2018, were collected and analyzed statistically. In total, 318 pieces of such cases were reviewed, having them kept into groups with the victims' gender and age, locations where cases happened, heights of high-falling, time spent

Mass spectrometry imaging is a new approach of imaging technology, capable of providing rich in situ spatial distribution information about the analyte. Desorption electrospray ionization (DESI) - mass spectrometry imaging (MSI) has in recent years been focused owing to its merits of ambient operation, simple pre-processing, less damage to the treated sample and high throughput. DESI plays its role through the solvent (usually methanol or isopropyl alcohol) being sprayed onto the surface of sample via capillary atomizing at open natural environment so that the desorption and ionization coul

To explore the feasibility of identifying the writings with their componential identity from thermosensitive erasable signing pens using microscopic attenuated total internal reflectional Fourier transform infrared spectroscopy (ATR-FTIR). With a collection of 49 kinds of thermosensitive erasable signing pens (from color- and batch-different products of 5 various brands) and 5 brand-discrepant common signing pens, the writings were tested from the collected pens via microscopic ATR-FTIR. At the same time, the influence of paper was investigated on the infrared spectrum of writing. All the 4