A High Court judge is to give his decision on whether a case brought by Tony Nicklinson, who suffers with "locked-in syndrome" and wants his "suffering to end" - should be allowed to proceed.
Mr Justice Charles, sitting in London, has been asked to rule on an application by the Ministry of Justice that severely disabled Tony Nicklinson's action should be "struck out".
Nicklinson - who is married with two grown-up daughters and lives in Melksham, Wiltshire - had a stroke in 2005 and was left with "locked-in syndrome".
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He communicates through the use of a perspex board or by using his Eye-Blink computer and sums up his life as "dull, miserable, demeaning, undignified and intolerable".
Tony Nicklinson before his stroke