This article examines the use of the database of the Portable Antiquities Scheme (PAS) for England and Wales, which records archaeological finds made by the public (particularly metal detector users). The PAS database is generally considered a valuable resource for archaeological research, but its use as such is rarely critically examined. In this case study, artefacts related to the specific material culture of the historically-attested Jewish community in Britain are examined as a potential source of archaeological information about a specific historical social group. The article highlights several challenges in interpreting records deriving from information received from collectors and hobbyists as a substitute for data recovered by archaeological methods. Several false leads and misinterpretations have been identified, and the lack of contextual information for the artefacts is especially problematic. The PAS records are of limited utility as a standalone source of evidence, and cannot lead to meaningful conclusions about Jewish lives in Britain. The artefacts primarily serve as material illustrations of existing written records rather than independent sources of information.