Latent fingerprints on different types of paper developed using various bifunctional
reagents (0.01% w/v in dimethyl sulfoxide) followed by water rinse and
subsequent enhancement with Ag-PD or SMD. a) Whatman filter paper, treated with
the ten-carbon chain bi-functional reagent followed by Ag-PD. b) Whatman filter
paper, treated with the twelve-carbon chain derivative, followed by Ag-PD. c) Standard
copy paper, treated with the five-carbon chain derivative followed by SMD. d) Standard
copy paper, treated with the eight-carbon chain derivative with no enhancement (no
SMD or Ag-PD).