Which materials can autoradiography be used to record latent fingerprints on?

Autoradiography is a technique that utilizes radioactive isotopes to visualize fingerprints, and it is particularly effective on non-porous surfaces. When considering the choices, the materials that can best retain the substances used in fingerprint development are paper and fabrics.

Paper is a common substrate that can absorb the oils and sweat from a fingerprint. The autoradiographic technique can reveal the latent print's residues through the radioactive emissions produced by the isotopes used in the development process. Fabrics also behave similarly, allowing for the retention of fingerprint residues that can later be visualized using autoradiography. The porous nature of these materials makes them suitable for this type of analysis, as they can interact well with the chemicals used to develop the latent prints.

In contrast, other options like plastic, metals, wood, glass, rubber, and leather may not offer the same level of effectiveness for autoradiography. For instance, while some types of metal and plastic can be effective for other fingerprint development methods, their surface characteristics often do not work well with the autoradiographic process in the same way that paper and fabrics do.