Can you find a professor-level expert to appear in court?

Hello. Professors are generally not allowed to appear in court if they are not lawyers. Of course, if it is a relative or friend of the criminal suspect, or a person recommended by the unit where the criminal suspect works, it is also possible.

Criminal procedure law

Article 32 A criminal suspect or defendant may, in addition to exercising the right of defense, entrust one or two persons as defenders. The following persons may be entrusted as defenders:

(1) lawyers;

(2) A person recommended by a people's organization or the unit to which the criminal suspect or defendant belongs;

(3) Guardians, relatives and friends of criminal suspects and defendants.

A person who has been sentenced to punishment according to law or deprived of or restricted personal freedom shall not act as a defender.