Will law enforcement be able to pinpoint a specific computer by matching network activity times?

Question

Computer networks

Suppose that in a certain country, viewing child porn is a criminal offense. Suppose that the police of this country took control of the server of a site with child pornography and began to track the IP addresses and all activity on the site of visitors to this site. Some visitors even visited the site with cp without hiding their real IPs, however, many visitors to this site used tor. Knowing the exact time of activity of all visitors to this site on this site over the past few months, will the police be able to detect those who accessed the site through tor by sending a request to all ISP providers in the country about which Internet users were active at the same time as visitors to this site who visited to the site via tor (in short, if the police send requests to ISPs like "which of the subscribers was active on 9.11.

Answer 1

Yes, they can. Sense them to catch a student from the hostel, who decided to fap in front of a couple. What to take from him? Yesterday's cooled down doshirak?

Answer 2

Yes, they can, but with a high probability they will act differently, most likely by IP! So it was with the creator of the little-known site 2kinoposk!

Answer 3

If they wish, they can, but you can imagine the provider’s response if more than half of the users have routers that never turn off for a long time, it is in your wording that no one will bother, especially since the tor is usually set up so that the output node is not in the source country. It will be much easier to calculate, if desired, from the options: hacking a site with cp and planting a trojan to a user, and there is already deanonymization, if you work through providers, then ask which of the users used TOR and i2p at a given time - the figure will be much more modest (yes this is clearly visible on the DPI logs), then operational work on several tens or hundreds of people, and not on thousands or millions as in your version.