Fatal stabbings are the leading cause of homicide in countries with restricted access to firearms, such as Australia. The analysis of damage on clothing imparted by a sharp object can assist in the characterization of the weapon. However, decomposition and carrion insects can modify the features of the damage, impeding textile damage analysis and crime reconstruction. This study aimed to identify and characterize the modifications of textile damage over 47 days of decomposition during the summer season in Western Australia. Fabric modifications were analyzed on cotton, synthetic, and blended fabrics with standardized cuts and tears, wrapped on 99 stillborn piglets. Six unclothed piglets acted as controls, with three being stabbed. All piglets were placed simultaneously in the field alongside swatches of fabric. Analyses considered taphonomy, insect interactions, and any textile damage using optical microscopy and SEM. The results showed that carrion insects can modify existing cuts and tears and introduce new artifacts on textiles. The 100% cotton fabric was the most affected by mechanical and chemical degradation, especially cuts and areas stained with blood or decomposition fluids. The study highlights the combined effect of multiple factors on textile damage, including the type of fabric, initial damage, bloating, insect activity, and biodegradation.

The human stabbing action is a dynamic interaction between the assailant and a victim, resulting in sharp force damage. The morphology of such damage is influenced by multiple parameters before, during, and after the stabbing incident. In forensic investigations, examining wounds and textile damage provides critical information about the implement used, the method of stabbing, and the associated physical interaction between the assailant and the victim. This information aids in reconstructing events and determining whether injuries are homicidal, accidental, or self‐inflicted. The assessment of tissue and textile damage involves qualitative analysis followed by hypothesis testing of simulated stabbing incidents and damage reconstruction. Currently, these reconstructions are manually performed by forensic practitioners, but variability exists in stabbing actions both between and within individuals, leading to limitations in accuracy, repeatability, and reliability. The present review represents the most current comprehensive overview of the factors affecting sharp force damage. It discusses the process of damage analysis with an emphasis on textile damage and discusses both manual and mechanical simulation methods used in research and forensic casework. It highlights the capabilities and limitations of these approaches, offering directions for future investigations and their forensic applications. Tables detailing the design and results of manual and mechanical experiments conducted since the 1920s are provided to assist operators. Finally, advanced methods, such as robotic arms that mimic human motions, are discussed as potential solutions to some of the current limitations, with the aim of enabling standardization in sharp force damage analysis and reconstruction.

Bloodstain pattern analysis (BPA) is critical for reconstructing violent events; however, interpretation becomes challenging when stains are modified by insects or decomposition processes1,2. Vario...