Which French medical/legal scientist proposed using powders and chemicals to develop latent prints at crime scenes?

The correct choice is Rene Forgeot, who is recognized for his contribution to the development of techniques used for revealing latent fingerprints at crime scenes through the application of powders and chemicals. His work emphasized the importance of physical evidence in legal investigations and introduced methods that enhanced the visibility of latent prints, allowing for more accurate identification and analysis.

Forgeot's methodologies laid the groundwork for modern fingerprint development techniques, showcasing a scientific approach that transformed forensic science. This focus on using materials to enhance the visibility of prints is crucial for effective fingerprint analysis, making it a significant advancement in the field.

While other figures, such as Juan Vucetich and Henry Faulds, also made notable contributions to fingerprinting methods, their approaches focused more on classification and the systematic collection of fingerprints rather than the specific chemical and powder techniques that Forgeot championed. Alphonse Bertillon is known for his approach to anthropometry and criminal identification, but he did not specifically advocate for the development of latent fingerprints through powders or chemicals, making Forgeot's contribution distinct and pivotal.