The study of facts used to support criminal prosecutions is a component of the applied science of criminal investigation. Searching, speaking with people, questioning people, gathering and preserving evidence, and using different investigative techniques can all be included in a full criminal investigation. Criminal investigations today frequently have a variety of cutting-edge scientific methods known as forensic science. Criminal investigations are techniques used to analyze crimes and catch culprits. The goal of the criminal investigator is to identify the perpetrators of crimes, their motivations, and the victims' identities. They may also look for and question witnesses. One significant development in criminal justice in recent years has been the use of technology in criminal investigations. On the other hand, the courts take into account these verifiable physical proofs, which are otherwise infallible, and more precisely assess the offender's guilt or innocence. The effectiveness and efficiency of the criminal justice system are now closely tied to the use of technology in criminal investigations. It is a subset of technology that operates within the bounds of the law. It has to provide support for those conducting studies and precise statistics to courts for criminal and civil cases. The crime scene must be handled scientifically and accurately. Forensic science is crucial in criminal prosecutions, particularly those dependent on circumstantial evidence. It may help establish the elements of a crime, identify a suspect, and determine whether an accused person is guilty or innocent. Searching thoroughly for evidence helpful in proving a crime is one of the investigating officer's main tasks at the crime scene. The investigating officer may be protected from possible physical evidence contamination that might develop at the crime site during collecting, packaging, and sending. Evidence must be preserved, and proper precautions must be taken to prevent contamination and to tamper with the material.

Forensic Science, investigation, evidence