For non-porous, smooth surfaces (like glass, metal, plastic, or painted wood), the most effective and common initial technique is **fingerprint powder** application, typically using a fine brush. However, among chemical methods, **cyanoacrylate (superglue) fuming** is exceptionally effective on non-porous surfaces. In this process, the item is placed in a sealed chamber with cyanoacrylate glue. The glue is heated, producing vapors that polymerize (harden) on the moisture and ionic residues left by a fingerprint ridge, forming a durable, white polymer deposit that reveals the ridge pattern. The developed print is often quite visible but can be further enhanced with dyes or powders. Other methods like **small particle reagent** (for wet non-porous surfaces) or **vacuum metal deposition** (for very smooth surfaces like plastic bags) are also used, but superglue fuming is a standard, highly reliable technique for a wide range of non-porous evidence.

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Zambia

• Naomi Miselo – 31 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies