Conversation so far:
Which school did Nick Griffin attend?
He was educated at Woodbridge School before winning a sixth–form scholarship to the independent Saint Felix School in Southwold, one of only two boys in the all-girls school.
Did Nick Griffin have a degree?
Griffin graduated with a second-class honours degree in law from Downing College, Cambridge.

Question: What did she has degree in?
Self-contained rewrite: What does Nick Griffin have a degree in?