Internet chat - whom to issue summons

I am not sure you need to summon anyone from Google or Microsoft, if you have given the photos to the Court. This is usually true in case of Civil Courts.

If the opposing party objects to these photos then it is very difficult to prove them, since I am not sure anyone from Google or Microsoft will come to a Civil court in a private third party case that does not involve them. The Court will have to issue summons that can be served on the local offices of these companies.

If you have filed a criminal case, then the police will directly approach the Internet Service Providers and ask for the required information to trace the perpetrators, if any.