The tax evasion trial of jailed former Ukrainian prime minister Yulia Tymoshenko will not be heard until October 15, after a judge in Kharkiv decided proceedings could not go ahead without Tymoshenko's presence.br br There have been a number of adjournments, as Tymoshenko, 51, refuses to attend court due to ill health.br br She is currently being treated for a back problem in a state hospital.