Defence barrister in the Court of Appeal of Monaco, Maître Yann Lajoux has been a member of the Monaco Bar since 1998. Following this, he devoted himself to traditional criminal defence, then moved into the field of business criminal law, intervening on major cases of Monégasque economic and financial criminal law.

Former President of the Monaco Bar Association, Maître Yann Lajoux is also a Knight of the Order of Saint Charles, a distinction intended to reward his merit and recognise his services provided to the State or Prince of Monaco.