65 The respondents relied upon this line of authority to contend that the trial judge was right to conclude that Mrs Lederberger had given her son Samuel implied actual authority. They submitted it had been given in two ways. First, by signing the 2006 trust tax return, which claimed and obtained the benefit of the tax deductions pursuant to entry into the Blue Gum agreements, Mrs Lederberger had given implied actual authority to Samuel to enter into the a further tax scheme - the Mediterranean Olives scheme - in 2007. Counsel submitted that from that implied authority to enter the 2007 Mediterranean Olives scheme, and Mrs Lederberger's failure to make any objection to the schemes, the trial judge was entitled to infer that she had given her son actual authority to enter into the Blue Gum scheme in 2006 as well. The trust's accountant, Mr Lebovits, had signed the tax agent's declaration on the 2007 trust tax return, stating that the tax return had been prepared in accordance with information supplied by the taxpayer, Mrs Lederberger, and that Mrs Lederberger had authorised the tax agent to lodge the tax return. The tax declaration was submitted as evidence that Mrs Lederberger knew what she was signing, was aware of the ramifications of the Blue Gum scheme and had, by implication, given actual authority to Samuel Lederberger in relation to the Blue Gum scheme and the Mediterranean Olives scheme.