While the UK has a different jurisdiction for adjudications, under their catchily named Housing Grants, Construction and Regeneration Act 1996, the issues of adjudicating payment claim/payment schedule disputes under the "pay now argue later" regime in the Construction Contracts Act 2002 and addressing the underlying merits claims are similar.
A recent decision of the UK's Technology and Construction court of M Davenport Builders Ltd v Greer & Anor sheds interesting light unresisting the enforcement of "smash and grab" adjudications while "true value" adjudications have yet to be heard.
