Employment Rights (Dispute Resolution) Act 1998, sch 1
A drafting omission from what is now the Employment Tribunals Act 1996 s.21 (then known as the Industrial Tribunals Act 1996) meant that for a while the EAT had no jurisdiction to hear appeals in contract claim cases (see Pendragon plc v Jackson 1998 ICR 215, EAT).
The position was rectified retrospectively by a suitable provision slipped into the Employment Rights (Dispute Resolution) Act 1998.