When you are looking at information that intelligence and security agencies have, they call it irrelevant information if they got it while doing something they were allowed to do, but they do not need it to do their job. You should know that irrelevant information includes things they used to need, but not anymore. Irrelevant information must be destroyed as soon as possible.

If an agency has irrelevant information, they have to get rid of it quickly, but there are some exceptions. You might not be able to destroy the information if a law says they have to keep it. A court can also stop them from destroying the information if they make an order saying so. This means the agency has to keep the information even if they do not need it.