Was Roger Casement's Trial a Legal Travesty?

After Roger Casement's capture on Banna Strand he was brought to London. During his interrogation on Easter Monday, news of the Rising filtered through, and by the end of the week, English public opinion of Casement had plummeted. He was presumed to have been the instigator of the Rising, although in reality he had come to Ireland to try to prevent it. While their first instinct had been to try him before a court-martial, the British government ultimately opted for the public spectacle of a full civil trial. Casement, however, would have preferred a court-martial like the other rebels.