Which latent print development technique should always be used inside a fuming cabinet?

The use of superglue, or cyanoacrylate, for latent print development is designed to be conducted in a fuming cabinet due to the chemical properties involved. This technique involves the vaporization of superglue, which creates an environment filled with cyanoacrylate fumes that adhere to the latent print residues left behind on surfaces. When these fumes come in contact with amino acids and other organic components found in fingerprint residues, they polymerize and develop a visible print.

Fuming cabinets are equipped to safely handle the vapors released during this process, ensuring that toxic fumes do not pose a risk to the investigator's health. Wearing appropriate personal protective equipment and ensuring proper ventilation are critical aspects of using cyanoacrylate in latent print development. This controlled environment maximizes the efficiency of the development process while ensuring safety standards are maintained. Other techniques, such as powder dusting or adhesive lifting, do not require this specific safety setup and can be performed in general areas.