Forensic science aims to prove or exclude a connection between individuals and objects or places. To accomplish that, a wide range of specimens can be collected on a wide variety of objects or surfaces and used as evidence, to assist the criminal investigation process. When sampling these specimens – especially genetic material – it is crucial to avoid any kind of contamination, as modern molecular assays are extremely sensitive and may detect even small amounts of extraneous DNA. Moreover, after collection, these samples must be handled and transported appropriately to ensure their preservation and traceability.