51 Complaints to [employment tribunals]
51 Complaints to [employment tribunals]

(1)     An employee may present a complaint to an [employment tribunal] that his employer has failed to permit him to take time off as required by section 50.

(2)     An [employment tribunal] shall not consider a complaint under this section that an employer has failed to permit an employee to take time off unless it is presented—

(a)     before the end of the period of three months beginning with the date on which the failure occurred, or