Page last updated at 14:46 GMT, Thursday, 17 March 2011

Do you know this man?

Two images of an undercover policeman
This man is known to have gone under the name of Simon Wellings

Newsnight is looking for more information on this man.

He was known as Simon Wellings during the time that he was a member of Globalise Resistance (between about 2001 and 2005), and was active in London as well as joining protests in New York, Paris, Seville and many other cities.

If you are Simon Wellings or have any information about him please e-mail us in confidence at NewsnightInvestigations@bbc.co.uk



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