Which type of powder is known to be more sensitive for latent print development than most others?

Aluminum powder is recognized for its high sensitivity in developing latent prints, especially on non-porous surfaces. When applied, aluminum powder adheres to the moisture and oils present in latent prints, enhancing visibility significantly. Its fine particle size allows for better adherence to the fine details of the print, which is essential for capturing intricate patterns and ridges.

In contrast, while the other types of powders—such as carbon black, magnesium, and iron oxide—can also be used for latent print development, they may not exhibit the same degree of sensitivity or effectiveness as aluminum in certain contexts. For instance, carbon black is commonly used and effective, but it may not highlight latent prints on specific surfaces as well as aluminum does. Magnesium is typically utilized in specific situations and may not be as versatile, while iron oxide is less frequently employed due to its properties that do not favor sensitivity as much as aluminum. Thus, aluminum powder is often the preferred choice among latent print examiners for its superior sensitivity and reliability in capturing clearer prints.