This is often an instance and clarification of extractor/ejector marks on casings. In Warwick 1816, a farm laborer was tried using and convicted on the murder of the younger maidservant. She had been drowned inside of a shallow pool and bore the marks of violent assault. In 1986, Dawn Ashworth, https://forensic-investigation45667.techionblog.com/27181542/not-known-details-about-forensic-investigation