most reasonable jurisdictions mandate that you’re able to face and challenge your accusers, which kinda requires your presence at trial. but it’s still physically possible for trials in absentia to happen. It’s just usually only done by assholes.

that said, warrants for arrest can be posted with people anywhere. Summons can also happen, but aren’t necessarily enforceable. At least, they wouldn’t be enforceable until you showed up in that jurisdiction. Many places have extradition treaties, and those treaties would also (probably) detail how subpoenas (for documents/information/etc) happen.