The Bargain Hunt auctioneer’s trial was told WhatsApp messages provide a ‘clear window’ into his relationship with his wife, Rebecca Hanson.
Antony James, 35, groomed the girls while they were under 16 years old and got them to send him sexually explicit images and videos.
The Prime Minister described the deal being negotiated with Mauritius as ‘extremely important for our security’.
Inquiry chairwoman Baroness Hallett ruled there would be a risk of harm or damage to any possible criminal trial relating to the firm.
The plan involves using GPS technology to record the locations of passengers in Yorkshire and the East Midlands.