What type of measurements are made during the friction ridge comparison process?

The comparison of friction ridge prints, such as fingerprints, relies primarily on sequential, spatial, and configurative measurements. These terms reflect the key aspects of how the unique patterns of ridges and valleys on fingers are analyzed.

Sequential measurements refer to the order in which the impressions are assessed, allowing examiners to systematically evaluate different features. This can include looking for the presence or absence of particular ridge features as they move from one part of the print to another.

Spatial measurements relate to the physical arrangement of the ridge features. Examiners note the distances between unique ridge characteristics, their orientation, and their relative positioning, which is vital for establishing whether two prints might originate from the same individual.

Configurative measurements consider the overall shape and arrangement of ridged patterns. Unique formations, including loops, whorls, and arches, are evaluated to ascertain similarities or differences in configuration patterns, which play a crucial role in identifying prints.

By combining these three types of measurements, latent print examiners can create a comprehensive analysis that aids in determining whether two prints match or if they come from different sources, making this option the best representation of the measurements involved in the friction ridge comparison process.