Dear Mr Ashworth,
Thank you for your letter.
I will try to respond to your specific questions but, as you recognise, in doing so my overriding concern must be to avoid doing anything to prejudice or undermine an on-going police investigation.
Downing Street became aware of a potential offence relating to child abuse imagery on the evening of 12 February. I was immediately informed of the allegation and the Prime Minister was also briefed. Officials then contacted the NCA to seek advice on how to report suspected criminality. Our subsequent actions were driven by the overriding importance of not jeopardising either their investigation or the possibility of a prosecution.
Patrick Rock resigned on the evening of 12 February. His resignation was not made public as we judged it was inappropriate to make an announcement while the NCA investigations were continuing. A few hours later he was arrested. We also arranged for officers to come into Number 10 to have access to all IT systems and offices they considered relevant.
There has been no contact from officials with Mr Rock since his arrest.
Mr Rock was cleared to the standard SC level which was appropriate for the classification of material to which he needed to have access.
You ask a number of questions about a separate sexual harassment allegation. Let me start by saying that we regard our duty of confidentiality to staff who make complaints as extremely important. Confidentiality is essential if we are to ensure that people feel able to raise issues freely, and without fear of subsequently being identified. I am therefore not in a position to provide any information that might breach our duty of confidence or allow an individual to be identified.