A remote evidence is related to an information stored on a remote machine. Remote evidence is difficult to be tampered with by the accused, since it would require unauthorized access to the remote system or the intervention of an accomplice. Remote digital evidence can be extracted from online social networks, emails stored on a server and so on.
With respect to local digital evidence, they may be considered more reliable since validated, in a sense, by the company providing the service (Google, Facebook, etc.).In practice, the company may act as an implicit trusted-third-party in the trial.