For purposes of Part X of the Employment Rights Act 1996 (unfair dismissal) the dismissal of an employee shall be regarded as unfair if the reason for it (or, if more than one, the principal reason) was that the employee—
In subsection (1)"an appropriate time" means—
and for this purpose "working hours", in relation to an employee, means any time when, in accordance with his contract of employment, he is required to be at work.
In this section—
Where the reason or one of the reasons for the dismissal was that an independent trade union (with or without the employee's consent) raised a matter on behalf of the employee as one of its members, the reason shall be treated as falling within subsection (1)(ba).
Where the reason, or one of the reasons, for the dismissal was—
the reason shall be treated as falling within subsection (1)(c).
References in this section to being, becoming or ceasing to remain a member of a trade union include references to being, becoming or ceasing to remain a member of a particular branch or section of that union or of one of a number of particular branches or sections of that trade union . . . .
References in this section—
shall be construed in accordance with subsection (4).