Littleton Chambers is losing one of its top commercial silks less than six months after hiring him.
Antonio Bueno QC, who was head of chambers at 5 Paper Buildings before joining Littleton at the beginning of the year, is leaving.
Renowned for his banking and commercial fraud expertise, Bueno is disciplinary tribunal chairman of the Financial Services Authority and also has a practice in the Cayman Islands.
He says he has yet to decide where he will go to but, despite his overseas connections, he says he will stay in London.
"It's just a case of my future practice will probably sit better in another set," he says. "I do banking and commercial work and Littleton is a very focused employment set. I think it would be better that I moved on."
The departure leaves Littleton with nine silks and continuing expansion.
A source at the chambers says there will be more recruits soon, adding: "If anything our set is expanding - this is a bloke who probably shouldn't have joined us in the first place."