General Guidelines for Capturing Latent Impressions Using a Digital Camera

Scientific Working Group on Imaging Technology (SWGIT)

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Introduction

The purpose of this document is to describe the proper documentation of latent print evidence by qualified personnel when using a digital camera.

The procedures described in this document are made in accordance with current SWGFAST guidance, see SWGFAST document “Standard for Friction Ridge Digital Imaging (Latent/Tenprint)”1, as well as National Institute of Standards and Technology (NIST) standard, “NIST Special Publication 500-271 ANSI/NIST-ITL-2007”2, both documents specify 1000 pixels per inch (ppi) at 1:1 as the minimum nominal resolution for latent print evidence.

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