(1)  The validity of an order, determination, direction or other document produced under this Act is not affected by an error unless –

(a) the error relates to the grounds on which the order, determination, direction or other document was made and proper grounds for making it did not exist; or

(b) as a result of the error, the order, determination, direction or other document does not comply with a mandatory requirement of this Act relating to the making of the order, determination, direction or other document.

(2)  An error in an order, determination, direction or other document made by the Tribunal under this Act that does not affect the validity of the order, determination, direction or other document may be corrected by the Registrar or the President.

(3)  An error in an approved form that does not affect its validity may be corrected by the Chief Psychiatrist.

(4)  .  .  .  .  .  .  .  .