10 The obstacles I have raised with Mr N K Chin both now and on the previous occasion, and with the benefit of the transcript of 30 April 2010 which was provided to him, have obviously been considered by Mr N K Chin. Regrettably, a period of consideration has only led to a filing of the most recent amended summons in chambers purportedly by Mr Paul Chin, but in truth, by his father. That action also violates, I find, the impediments which Mr N K Chin seems unable to accept as a would-be legal representative for his son. Mr N K Chin must not act as a barrister and solicitor on his own account. He holds no current practice certificate. Even if these obstacles did not apply, he would suffer here from a clear conflict of interest in seeking to represent his son's interests in this caveat extension action. The materials filed also betray a failure to comprehend that what merely needs to be established to sustain a caveat or its continuance is an arguable interest in land - which was the basis of Templeman J's original order of 8 February 2007: see generally Bashford v Bashford [2008] WASC 138 (Beech J). Templeman J also ordered that the underlying dispute over legal fees said to be secured by a charge in favour of the plaintiff, be substantively resolved in another forum.