33. (1) The Registrar may cancel a research permit if—
(a) the permit holder has been convicted—
(i) of a defined offence; or
(ii) in Australia or elsewhere of any other offence relating to a pesticide; or
(b) the Registrar is satisfied on reasonable grounds that the permit holder—
(i) has contravened the terms of the permit;
(ii) has dealt with a pesticide in relation to which the permit is granted for a purpose other than that in relation to which the permit was granted; or
(iii) does not need to deal with any of the pesticides in relation to which the permit was granted for the purpose for which the permit was granted.
(2) The cancellation of a permit takes effect from the date specified in the notices of cancellation given pursuant to section 80, being a date no earlier than that on which the latest such notice is given.