How to make sense of citizen expertise in participatory projects?

This article proposes a pragmatist theorising of different repertoires valuation as an analytical grid to understand how actors participatory projects assess the value citizen expert participation. It conducts justification analysis on interview data from 21 that engage citizens lay experts in Finland illustrate this approach helps explain contradicting meanings assigned concept well resulting possibilities for The identifies two main conflicts which justifications expertise become explicit: debates over who can be and what scope their participation should be. Our results show Finnish context, industrial are often used bolster claims right participate. However, value-base is also most reoccurring object critique, suggested create narrow above-defined role citizen-engineer experts. illustrates diverse might lead constructions expertise, contributing conflicting expectations, ambiguous tokenistic participation, feelings exclusion among policy actors. argues tool identify compare these undergirding valuations across fields contexts.