Dark SPR with Spray Head 500ml Set of 3

Small Particle Reagent (SPR) is quick, inexpensive and effective on fresh fingerprints. SPR is composed of finely ground particles suspended in a detergent solution. These particles adhere to the fatty constituents of latent fingerprints to form a visible deposit. Latent prints developed using this method may be lifted using standard lifting mediums. SPR100 consists of 3 - 500ml bottles of Dark Small Particle Reagent.