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A fingerprint is a conclusive evidence. Fingerprints are permanent and unique thus it proves the presence of a particular individual. Occupational marks found in palm prints or fingerprints can aid in individualization, thus helping the police in case investigation. Occupational marks are specific for every occupation. Analysing the occupational marks in the retrieved palm prints, it’s possible to narrow down the list of suspects by the work environment. This research is regarding the occupational marks in fingerprints and palm prints of fishermen in coastal regions of Kerala. Visual examination of palm prints of fishermen is performed and data is collected to conclude that occupational marks in fingerprints and palm prints of fishermen can be used in investigation.