A man accused of conspiring to supply cannabis-laced chocolate bars campaigned for the drug to be used by sick people, a court has heard.
From left; Lezley and Mark Gibson, Marcus Davies
Mark Gibson and his wife Lezley, both 42, of Alston, Cumbria, are standing trial at Carlisle Crown Court with Marcus Davies, 36, of St Ives, Cambs.
All three deny two charges each of conspiring to supply cannabis.
The court heard how Mr Gibson had made a case for the medicinal use of the drug to the House of Lords.
He told the hearing he had become interested in the therapeutic potential of the drug many years ago because his wife has multiple sclerosis.
He said he had campaigned for the drug to be used by people with the illness since the late 1980s.
He also told the court he had been visited by police officers as far back as 2002 and been told not to be so "brazen" about what he was doing.
But he was not been arrested until last year, the jury heard.
He said the drug was only given to people who could prove they had MS and that a donation was all that was asked for.
It is alleged the three defendants sent home-made "Canna-Biz" bars by post to help patients cope with the pain of MS.
The jury at Carlisle Crown Court had already been told the trio made no secret of their involvement in the supply of the chocolate bars.
The trial continues.