 Sections 21 – 23 cover the review of agents and the liability of trustees for agents actions . Section 21 identifies that review and liability occurs when the trustees appoints agents , nominees and custodians under the Act or under similar provisions in the trust instrument . Section 22 provides a duty on trustees who delegate their powers , with the duty consisting of three elements . Firstly , trustees are required to make sure that agent is suitable for the job he is employed to do . Secondly , they are required to consider whether or not to intervene in the appointment if circumstances demand it . Thirdly , trustees are required to intervene after appointment if the circumstances demand it . Section 23 establishes trustees ' liability for the actions of agents ; a trustee is liable for negligence if he violates the general duty of care set out in Section 1 , but not otherwise . 
