My Lords, the Government recognise the importance of legal professional privilege—the client’s privilege—in the context of the rule of law. This is perhaps one of the most important issues that we will consider in the context of the Bill.
The noble Lord, Lord Pannick, outlined the operation of legal professional privilege and explained what is sometimes termed the iniquity exception. He went on to identify what he considered to be the issue of principle that we are concerned with in the context of the amendment and invited me to indicate whether I agreed with his outline of privilege—the iniquity exception—and the principle with which we are concerned. I am happy to concur and accept his clear exposition of the position in that regard. So I shall not elaborate on what is legal professional privilege or the iniquity exception, except to this extent. What is termed the iniquity exception arises where the client is using the conversation with the lawyer in furtherance of a criminal purpose, whether or not the lawyer is a witting party to that. If the lawyer is unwittingly used as a tool or a conduit, the iniquity exception would apply in those circumstances as well; with that, we have no difficulty.
However, there are further circumstances in which the iniquity exception would not necessarily obtain, and when a very important piece of intelligence might become available if the communication was considered by the relevant authorities. I go back to a scenario that I shared with number of noble Lords when we discussed this in recent days. An agency may have intelligence to suggest that an individual is about to carry out a terrorist attack. It knows that he is in contact or about to be in contact with a legal adviser, and it has reason to believe that that contact with the legal adviser might reveal information that could assist in averting the terrorist attack. The example is where the client might refer to his whereabouts. He might say, “I’m in Paris”, or “I’m going to be in Paris tomorrow”, or “I’m in London”, or “I’m going to be in London tomorrow”. It is that piece of intelligence in the course of the privileged communication that is critical. I know that some commentators—and, indeed, the Bar Council—have suggested that that would fall within the iniquity exception; it does not. Indeed, if we try to stretch the iniquity exception, we damage the concept of legal professional privilege, so we must be very careful about how we approach this.
So there is that exceptional situation—and it must be exceptional before any warrant could be contemplated—in which intelligence gleaned from such a conversation would be of critical importance. I stress the word “intelligence” because on occasion it is very easy to refer to this as evidence. Such intelligence
would never be admissible in a court of law, so let us be careful about that. We are talking about intelligence as such, not evidence.
The noble Lord, Lord Pannick, suggested that this would be such an unusual event that to approve the power would be to approve a power of purely theoretical value. With great respect to the noble Lord, the fact that something is highly unusual or highly exceptional does not render the power theoretical. The power may not have been employed in the past and it may not be employed in the foreseeable future; that does not render the power theoretical. The occasion may arise, in the face of a terrible terrorist threat, in which such intelligence can be made available to the appropriate agencies. If we bring down a guillotine, LPP will be denied to them. So the power is not theoretical.
The noble Lord, Lord Carlile, made the very good point: we are really dealing here with the question of balance. Should we intrude upon what we see as legal professional privilege—that fundamentally important concept—for the sake of a highly exceptional case in which such intelligence could be critical? There is an element of balance there.