FILE PATHRALPH PALMER/DETROIT POLICE
TOOLS & METHODS

Investigating Before Digital

Equipment, records, surveillance, lineups, polygraphs, court procedure and the methods available in each era.

Detroit patrol officers from the Palmer family archive — real Detroit police context for the pre-digital methods section.
Palmer Family Archive · Detroit patrol officers from the Palmer family archive — real Detroit police context for the pre-digital methods section.
HOW THE WORK WAS DONE

Investigating before digital.

Police work in Ralph Palmer’s era depended on paper, telephones, call boxes, radio dispatch as it developed, in-person interviews, fingerprints, photographs, lineups, surveillance and records stored in physical files. A detective carried information between people and places rather than pulling it from a networked database.

Methods also changed over a twenty-five-year career. This room keeps equipment and procedure tied to the period in which it was used so a 1960s practice is not casually projected backward into the late 1940s.

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