Following a successful AGM and national Rally, with over a 100 people present, six members of Cymdeithas yr iaith Gymraeg were arrested. Menna Machreth, newly elected chair of Cymdeithas along with Rhys Llwyd the vice chair of the movement were arrested for painting the slogan 'MESUR IAITH CYFLAWN' (A COMPREHENSIVE LANGUAGE MEASURE) on the walls of the New Assembly building in Aberystwyth. Another fifty members showed their support for this action by signing their names on the wall. This led to the arrest of another four people, Bethan Williams who is chair of Cymdeithas yr Iaith's Language Act campaign, Siriol Teifi, chair of Cymdeithas branch at Aberystwyth University and two teenagers who have not been named.

Menna Machreth and Rhys Llwyd are still in police custody while the other three arrested have received an official caution from the police.While signing the wall many Cymdeithas members held up a yellow card in the style of a football referee, symbolising a final warning for the Welsh Assembly Government on the Language Act issue.Concern was also expressed by many demonstrators that the police had over reacted during the demonstration.(Thanks to Angharad Clwyd for the Photographs)(Thanks to Aled Griffiths for the photographs)