Small Particle Reagent, Dark 500ml

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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.  Available in single 500ml bottles or packages of 3 – 500ml bottles.