What is common testify sample?

A common testify sample refers to a biological sample, such as blood, saliva, semen, hair, or skin cells, which can be used as evidence in a court of law to determine the presence of an individual at a crime scene or to establish a link between a suspect and the victim. These samples are collected by law enforcement officials during the investigation of a crime and are analyzed in a forensic laboratory using advanced techniques, such as DNA analysis, to identify the individual who left the sample behind. Common testify samples are highly reliable and accurate, and have become an essential tool in law enforcement and criminal investigations.