Sir Paul Tucker, one of the most senior figures in European post-crisis financial regulation, has warned that the international programme of regulatory reform is at risk of losing momentum at a time when rule-making on important issues remains unfinished.

Tucker, who received a knighthood for services to banking in the 2014 New Year's Honours List and worked at the Bank of England from 1980 to 2013, told Financial News that a number of areas remain unresolved, despite a growing tendency towards a pause in the reform agenda.