The starting point for a forensic examination is usually a crime scene/scene of incident, which can be anything from a physical location, to a computer or a human body. A crime scene typically holds a multitude of forensic evidence that not only provide the scene of crime investigator with objective data from which investigative theories can be tested and testimonial evidence can be collaborated or refuted, but also make available to the court the conditions and circumstances defined by the scene.

Systematic generation and analysis of quality forensic data, also contributes to the identification of new crime trends and threats, for example, into the identification and the methods being used to counterfeit or forge official documents, which serves as a prerequisite for trafficking in persons as well as the smuggling of migrants. This knowledge in turn provides a basis for designing appropriate counter (or preventive) measures.