Be wary of strangers. As with any online platform where people connect, people may not be who they say they are. Tutor Seek verifies that a user's email address and phone number are real, but anything beyond that is up to you. Always meet someone in a public place the first time so you can assess them; may it be a coffee shop, park, or promenade.
If qualifications are important for the subject or activity you're looking to learn, ask to see them. This is normal, and tutors will expect this. Remember, you're employing them.
If a tutor wasn't born locally, they may need a visa to be able to work; even part time. Even people on a temporary working visa will have ID so ask to see that.