Qualifications
Universities follow a simple rule: if you supervise something, you must have done that degree. At MA level, there are exceptions, but at Ph.D. level, this rule is strictly obeyed. Thus, the tutor HAS to have a Ph.D. or similar degree.
Not only that, we increasingly require that tutors must be at least adjunct professors (docents) at some university. This means that they have continued doing research ater their Ph.D, and have published at least one book comparable to a Ph.D. after their doctoral work. Above all, this is an important quality check. Keep in mind, a Ph.D. is tutored by someone; we do not know whether someone with a Ph.D is capable for many academic tasks until the person goes through the process of being an adjunct professor.