A new p-dimethylaminocinnamaldehyde reagent formulation for the photoluminescence detection of latent fingermarks on paper

- p-Dimethylaminocinnamaldehyde (DMAC) re-evaluated for the detection of latent fingermarks.
- New formulation reliably develops latent fingermarks on paper surfaces.
- Successful application to thermal paper without modification of formulation.
- Able to detect fingermarks on paper at least 6 months after deposition.