The Clause provides the Secretary of State with the power to require the attendance of witnesses.

The Government are acutely aware that many of the acquisitions considered by this regime will be complex and highly technical. In addition to clause 19, which enables the Secretary of State to require the provision of information, most likely in written form, this clause enables the Secretary of State to require the giving of evidence. A notice requiring a person to attend under this clause is called an “attendance notice”. The clause is complementary to clause 19, discussed previously, as it provides, for example, for the Secretary of State to be able to receive expert explanation, in person, from those involved in a trigger event, where the information previously provided does not provide sufficient clarity.

In responding to an attendance notice and providing evidence, a person is not required to give any evidence that they could not be compelled to give in civil proceedings before the court. That protects privileged information. In addition, the Secretary of State will only be able to request information through an attendance notice that is proportionate in assisting him in carrying out his functions under the regime.

We envisage a range of scenarios where the Secretary of State may require the attendance of a witness in order to gather further evidence to make an informed decision on the case. I will provide a few to illustrate. First, I expect that a number of cases will involve complex acquisitions, either because of the advanced nature of the technology in question, or due to their financial structuring. In those cases, the Secretary of State may require those who hold expert knowledge to provide him with an explanation. There may also be cases where it seems that parties are being deliberately non-compliant, or only partly compliant with information-gathering requests. I expect those to be rare but, again, it is only right that the Secretary of State has the power to require the attendance of those parties to provide further information.

The attendance of witnesses may also be a more efficient way to secure additional information in some circumstances, and limit the risk that further time will be needed to consider additional information. There will be criminal and civil sanctions available to punish non-compliance with the notices and the provision of false or misleading information. The attendance notice is provided under threat of such sanction as it is important that the Secretary of State receives the information he needs and can count on to come to a decision.