This week the editor’s blog has been celebrating the 20th anniversary of Big Bang by inviting senior City lawyers to reflect on its impact on the legal market. Anthony Salz, Nigel Boardman, David Childs, Len Berkowitz, Robert Sutton, Guy Beringer and Barry O’Brien all offer their thoughts, which can be found at legalweek.com/editorsblog.

There is a common theme to their recollections. A flurry of deal activity in 1986 as the broking firms were snapped up by banks was followed by a period when London’s leading lawyers were forced to get to grips with the new regulatory regime. “Overnight we had a new regulatory practice, advising on the Financial Services Act and the new Securities & Investment Board,” observes Childs.