Sirchie 6" Photo Evidence Ruler Black White Set of 10

Photo Evidence Ruler Set

The Sirchie 6" Photo Evidence Ruler set contains ten black-and-white scales designed for forensic photography and evidence documentation. Each ruler provides precise 6-inch and 15.24cm measurements for accurate scaling. Law enforcement and crime scene investigators use these tools to capture reliable dimensional references in latent fingerprint images and general crime scene photos.

Measurement Standard Constraints

The rulers display English and metric graduations on a single high-contrast face for quick reading in varied lighting. Printed scales are fixed references and cannot be calibrated or adjusted after manufacture. Accuracy depends on the camera lens and shooting angle, so the ruler only guarantees the printed increment, not the final image scale.

Replaces Worn or Missing Scales

This set refreshes kits where original rulers have faded, cracked or been lost during field work. The jump is worth it when existing scales no longer photograph clearly or when a team needs enough spares for concurrent scenes. Buyers who require longer reference lengths or adhesive-backed alternatives will need a different product.