Det Sgt Nick Bailey said life would "probably never be the same" after being exposed to a nerve agent.
Live news, sport, weather and travel updates for the West of England.
The charity says the land is one of the "most significant purchases" in its history.
Russia is behind the attempted murder of an ex-spy and his daughter in Salisbury, the PM believes.
Steve Cooper was in the the Mill pub in Salisbury where traces of a nerve agent have been found.
Team news as Bath host Exeter Chiefs in Friday's Premiership fixture at The Recreation Ground (19:45 GMT).
The Anglo-Welsh Cup final between Bath and Exeter, which was postponed on Sunday, will now take place on 30 March.
Wiltshire Gazette and Herald
Wilts and Gloucestershire Standard
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Who created the Pan Galactic Gargle Blaster?
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