Forensic Science and Technology (ISSN:1008-3650)

The key and difficult points of forensic analysis of high-falling cases are to infer and reconstruct human falling trajectory and analyze the formation mechanism of injury. These results help to provide technical support for the comprehensive judgment of the nature of human fall, and help to provide intuitive and effective explanations for non-professionals such as family members of the deceased. Numerical simulation technology is a series of new interdisciplinary technology formed on the basis of the continuous development of computer simulation. In recent years, thanks to the development

As a potent alkaloid, colchicine has attracted much attention due to its unique structure and pharmacological properties. Colchicine has many medical applications, not only for the prevention and treatment of gouty arthritis, but also for the treatment of tumors, hepatitis and so on. Studies indicated that colchicine had low blood concentrations, so the method of determination of colchicine in blood should be more sensitive. Therefore, the objective of this article is to establish a sensitive method for analysis of colchicine in blood by liquid chromatogram-high resolution mass spectrum (UP

In this experiment, four different types of disposable gloves made of different materials were pressed onto the surfaces of A4 paper (with ink), adhesive tape, glass, aluminum alloy and white plastic window frames, to observe the marks left by gloves made of different materials on various non-porous substrates. The results of the experiment showed that the impressions left on the non-porous surfaces by polyvinyl chloride gloves and medical examination gloves showed recognizable ridges of forensic value when they were embossed and revealed using a magnetic powder brush. Notably, medical exam

Since the mid-2000s synthetic cannabinoids have been abused as recreational drugs, prompting scheduling of these substances in many countries. To circumvent legislation, manufacturers have constantly marketed new compounds, 5F-UR-144 is one of the most recently and widely abused drugs. In order to combat drug abuse better, the metabolites of 5F-UR-144 in rabbit urine were analyzed to explore its metabolic mode and pathway. Rabbits were divided into experimental group and blank group, and rabbits in the experimental group were injected with 5F-UR-144 ethanol solution, while blank ethanol sol

This article has analyzed the relevance between grid features and various printing software environments and assessed relevant information of operating systems, print-driver programs, and word processing software in order to explore a new idea for identification of printer models. 500 samples from 100 frequently used Chinese characters were made by Lenovo LJ2200, HP M126a, Panasonic KX MB1538CN, Brother MFC-7880DN, Brother HL-5585D, Lenovo M3410, Kyocera FS-1040, Lenovo LJ6700DN, Canon ip7280, FX CM118, Canon 2520i, HP M1136, Samsung CLP680, TOEC OEP4010DN printers with different resolution