In developing fingerprints, what is used for rough non-porous surfaces?

For developing fingerprints on rough non-porous surfaces, gel-lifters or Mikrosil are highly effective. These materials are designed to capture and preserve the fine details of the fingerprint ridges, especially on surfaces that are uneven or have texture. Gel-lifters are particularly beneficial because they can conform to the surface contours, ensuring a more accurate and complete transfer of the fingerprint pattern.

In contrast, regular lifting tape may not adhere well or could miss details on rough surfaces due to the irregularity. Plain water would not facilitate the lifting of fingerprints, as it does not interact adequately with fingerprint residue. Relying solely on powder for developing prints on rough surfaces can also be ineffective; while powder can enhance visibility, it may not provide a clear impression if the surface texture disrupts the uniformity of the coating. Therefore, gel-lifters or Mikrosil stand out as the optimal choice for this type of application.