Some evidence can be gathered from the 'usual suspects', like Caesar's "De Bello Gallico", who discusses some aspects of Celtic laws in his account of the Gaulish Wars, specifically his famous excursus on the Gauls, but also in some other passages. Some of these passages allow us to confirm the existence, in some Iron Age Celtic laws, of some of the legal principles which can be reconstructed from early medieval Celtic laws as likely elements of common Celtic law, increasing the likelihood of any such generalised reconstruction. Other passages can tell us about particular legal practices in individual Gaulish societies, which are specific for just the society described, without allowing any greater generalisations.