Grandin worked as a consultant with the Historical Clarification Commission (Spanish: Comisión para el Esclarecimiento Histórico, or CEH), the Guatemalan truth commission, and has written a number of articles on its methodology, including its genocide ruling and its use of historical analysis.
Pracoval jako konzultant Comision para el Esclarecimiento Histórico (CEH), guatemalské komise pravdy, a napsal řadu článků o související metodologii, genocidě a historické analýze.