Kostal v Dunkley and others  UKSC 47
Direct offers from employers to workers who were Unite members breached section 145B TULRCA
The Press Summary is set out below:
Mr Dunkley and 56 other claimants (and appellants) are all members of the trade union “Unite” and are employed as shop floor or manual workers by the respondent, Kostal UK Ltd. Following a ballot of workers, Kostal and Unite signed a (non-legally binding) Recognition and Procedural Agreement in February 2015. In October 2015, they began formal annual pay negotiations.