In the absence of readily-available data on the the composition of EASO's asylum support teams, and on the national seconded experts, any little bit of information found is very useful.
As this Q&A session between a UK MP and the Minister of State (Immigration). The question was posed on 12th July by Oliver Heald:
"To ask the Secretary of State for Foreign and Commonwealth Affairs pursuant to the answer of 4 July 2011, Official Report, columns 1030-31W, on Greece: asylum, how many UK experts are seconded to the European Asylum Support Office; and what plans he has for the future number of such secondments."
The response was provided by Damian Green:
"No UK experts are currently seconded to the European Asylum Support Office (EASO). However, the UK Border Agency seconded one official between
23 February and 24 March 2011 to work with EASO in Greece and plans to second a further two, also to work in Greece, in the near future.
The UK Border Agency would be happy to agree further secondments beyond these at EASO's request, if its resources permitted."