My question was more precise: could the judge use it? Your answer is as clear as possible: no, he could not make use of it.
On the other hand, you understand that security agencies try to gather information on the threats against us. I think you understand clearly the difference between the role of security agencies and the role of police. Police look for evidence to lay charges. Security services look not only for evidence but also for clues. They make assumptions in order to measure the danger and take measures in order to ensure these dangers do not become reality.
Do you understand that under such circumstances security services, in trying to prevent terrorist actions, might use such information, if only to maintain under surveillance individuals who are here or else to advance their investigations?