James has conducted over 100 mediations, roughly two-thirds in the chancery and commercial fields, with the remainder covering a wide range of other subjects. Several cases have an international element or involve cultural or religious issues. He was a director of Mediation UK for three years, and for five years did pro bono community mediation for the Camden Mediation Service. He also completed a PhD on mediation in 2002. He has run a group mediation involving over 50 participants and lasting four days, but most cases are settled in one day or less. He is widely praised for the way he helps the parties find a solution to their disputes, his professionalism, and his success.