Colin became the senior partner of Simmons & Simmons in 2011, but continues to maintain his litigation practice. Over the last 31 years Colin has worked in England, Hong Kong and the Middle East from where he has developed a varied commercial litigation practice that encompasses both international and domestic disputes. His particular focus areas are retail finance litigation, extradition disputes and large professional indemnity claims.
Colin published the 3rd edition of "Privilege" in July 2013. This is one of the leading textbooks on the subject of legal professional privilege. Colin also authors Passmore on Privilege: a blog, which reviews the more interesting cases arising under the law of legal professional privilege.
He joined Simmons & Simmons in 1986, becoming a partner in 1990 and a solicitor advocate (civil) in 1999. He is chairman of the Membership Committee of the Academy of Experts.
Colin is highlighted within the leading legal directories for both litigation and professional negligence. Client feedback in Chambers UK 2017 includes recognition for his “fantastic judgement” and he is noted for his knowledge on issues of privilege. He is recognised within the Legal 500 2017 as having a “supreme command of commercial litigation issues”. He is also noted for his “fantastic reputation” in handling disputes involving accountancy professionals and solicitors.