I recently made a Freedom of Information request of North Wales Police to ascertain information in respect of how many DNA profiles of innocent people they actually hold and I received the following response:
North Wales Police are unable to supply the information requested.
Although the way the information is held makes it easily retrievable for our policing purposes it would actually require a manual search of individual records to enable us to respond to your request.
I don't accept this and I have lodged a request for the refusal decision to be reviewed and my explanation for the review was that the Police know how many people have been arrested and how their cases have been disposed, this information is held on the Police National Computer as is details of DNA taken, North Wales Police have their own Force code so it should be fairly easy to retrieve the information requested. We shall wait and see!