A British man who is terminally ill with motor neuron disease is asking the High Court to let him end his life.
Noel Conway is going to court on Monday to challenge a ban on euthanasia, arguing it is incompatible with human rights protections.
Conway was diagnosed with the degenerative condition in 2014 and is expected to die within a year.
He wishes to be able to enlist assistance to bring about a “peaceful and dignified” death at a time of his choosing.
A previous challenge to Britain’s ban on assisted dying by another man, Tony Nicklinson, was rejected in 2014 by the Supreme Court.
Lawmakers have so far declined to change the 1961 Suicide Act.