He is also a member of the Green Party of England and Wales who has stood in a number of elections. He was the Green parliamentary election candidate for Finchley and Golders Green in 1997 and for Leyton and Wanstead in 2001 and 2005.
Gunstock was a candidate in the Green Party of England and Wales leadership election, 2008.
He lost to Caroline Lucas by 2,559 votes to 210.
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