There are two themes that recur in previous Sir David Williams lectures. First, that it is a considerable honour to be invited to give the lecture. Secondly, that it is a daunting task to do so in the presence of Sir David, particularly in a field in which he has expertise. Since that covers most of the law there is no escape from this dilemma. Let me then acknowledge the privilege of having been asked to give this year's lecture, and confess that it is with some trepidation that I do so. The subject, terrorism and human rights, is not exactly uncharted territory. When I looked into the internet for some guidance on what might be relevant to terrorism and human rights, the response to my Google search informed me that in .03 seconds 32,900,000 references had been found. This seemed to indicate that it was unlikely that I would be able to say anything that has not already been said. But there are some subjects that are of such importance that there is value in reminding ourselves of the issues that are at stake, and if necessary for that purpose, repeating what others have said. And it is with that in mind that I approach my chosen topic.