My Lords, as the noble Baroness has explained, Amendment 210ZA relates to the modification of a bulk acquisition warrant for the purpose of allowing examination of material after acquisition has ceased. Here, we come back to the issue that we debated earlier in relation to Amendments 201ZC and 217C, which covered bulk interception and bulk equipment interference warrants. The amendment would remove important technical provisions from the Bill—a point that I made in that earlier debate.
The Bill enables a bulk acquisition warrant to be modified such that it no longer authorises the acquisition of any material but continues to authorise the selection of material for examination. The circumstances catered for here are limited to a situation where it may no longer be necessary or possible to continue the collection of data, such as where a communications service provider goes out of business, but the data collected up to that point under a warrant remain pertinent. In circumstances such as those, it may continue to be necessary and proportionate to examine data that have already been collected under that warrant.
Clause 151(5), which the amendment would remove, simply clarifies that a warrant that has been modified in that way remains a valid bulk warrant if the Secretary of State considers that examination of the acquired data remains necessary and it is approved by a judicial commissioner. That is necessary because Clause 146(5) states that one of the conditions of the warrant is that its main purpose is to acquire data. But, of course, a warrant that has been modified in the manner I have described will no longer meet that condition because it will no longer authorise the collection of data.
I hope that that explanation clarifies any uncertainty in the noble Baroness’s mind and that she will agree that these provisions are necessary.