Regular refereeing for Physical Review and Classical and Quantum
Gravity. American Physical Society "Outstanding Referee" award.
Chaired parallel session B1 (Numerical Relativity) at GR18, Sydney July 2007.
PhD supervisor of Ian Hinder (2005), David Hilditch (2008), Oliver Robertshaw (2010), Stephanie J Erickson (2015). MPhil supervisor of Chris Nunn (2006).
External PhD examiner for Ian Hawke (Cambridge, 2001),
David Brizuela (Universidad Autonoma de Madrid, 2009), Matthew Bohan
(Leeds, 2009), Jean-Louis Cornou (CNRS, 2010), Alexander James (Imperial College, 2013).