The Colombo Centre, 34-68 Colombo Street, South Bank, London, Greater London, SE1 8DP.
Sensei Luke Graham is a sho dan (first degree) black belt in the Jiu Jitsu style of Seishin Mizu Ryu Tatakai Jutsu.
He has trained in various martial arts for more than a decade and has been London's chief instructor since January 2015.
The Colombo Centre
34-68 Colombo Street, South Bank