 The justice of the Ceffyl Pren was administered by a jury led by a foreman, with all of the men involved seeking anonymity through the use of blackened faces and female garb.This bizarre tradition led to the adoption of "female impersonation" as one of the key features of the Rebecca Riots which swept across South and West Wales in the period 1839-1844 in protest against tollgate charges and the corruption of the Turnpike Trusts.