A trust instrument will set out the trustee’s powers and duties in relation to the management, administration, and distribution of trust property. Certain further powers and duties may be imposed by statute or have been developed in the common law. Trustees must comply with these duties, and act properly in the exercise (or non-exercise) of their powers. Where they do not comply with their duties, whether because they act in direct contravention of them or because they improperly omit to act at all, they may be held liable for breach of trust. Similarly, where they act in excess of their powers, or in certain cases improperly fail to exercise their powers at all, they may be guilty of a breach of trust. Breaches of trust can therefore be of many different kinds. They may include: