: A Scene of Crime Officer (SOCO) is called to take over the technical investigation. To avoid contaminating the scene with their own hair, skin cells, or fibers, SOCOs wear full protective suits, masks, gloves, and overshoes.
The physical collection of evidence demands specialized techniques to avoid contamination. Trace evidence—fibers, hair, glass fragments—is lifted using adhesive tape or collected with a vacuum device fitted with a filter. DNA-rich sources like blood or saliva are allowed to air-dry before being packaged in paper bags (never plastic, as plastic traps moisture and promotes bacterial growth, which degrades DNA). Fingerprints are developed using powders, vapors (cyanoacrylate, or superglue fuming), or chemical reagents like ninhydrin. Each item is sealed in a separate container, labeled, and signed. Investigating A Crime Scene Ielts Reading Answers
Based on common practice tests for this topic from platforms like IELTS Online Tests , here are the typical answers for common question types: True / False / Not Given (or Yes / No / Not Given) Question Statement Explanation from Text : A Scene of Crime Officer (SOCO) is
Instead of memorizing random facts about CSI, you now have a that works for any IELTS passage on this topic. Examiners love to swap the order of these three phases to create False answers. Each item is sealed in a separate container,