Which technique would most probably involve using a magna brush to detect a latent print?

application of aluminium powder

Explanation:

The application of aluminium powder is the method used to detect a latent prints using a magna brush. These prints are formed when the body's natural oils and sweat on the skin are deposited onto another surface and can be found on a variety of surfaces. These prints can be detected using fingerprint powders or alternate light sources.

Latent prints are usually destroyed or dissolved when the surface bearing such prints is submersed in water.

In the past, technique line powder dusting, iodine fuming and silver nitrate soaking were used for latent print development.