Many laboratory examinations can degrade or destroy document evidence. For example, the chemical processing for latent prints may cause the ink to run or to disappear completely. It also destroys any indented writings and may negatively affect other potential examinations. Incoming cases are screened for their potential for future Questioned Document examinations and those cases are routed to the Questioned Document Section. At a minimum the questioned documents are photographed and, if appropriate, some examinations may be conducted. Any tests or examinations that are conducted are non-destructive and will have absolutely no adverse effects on any subsequent examination for latent prints.