(1) Without prejudice to the way in which a report may be made under section 42, such a report may be made in accordance with an internal reporting procedure established by an employer for the purpose of facilitating the operation of the section concerned.
(2) It is a defence for a person charged with an offence under section 42 to prove that the person was, at the time of the purported offence, an employee who made a report under that section, in accordance with such an internal reporting procedure, to another person.