The investigation of politics and law in Gansu can only be changed to studying abroad in law. The major of study abroad is strictly restricted. Except for the exchange of study abroad between governments (that is, public universities), the rest are not recognized by the Study Abroad Center of the Ministry of Education of China (that is, spending money for nothing).
If the landlord really wants to go abroad, he can apply for a foreign institution through the GRE and other competency tests.
Or admitted to the People's Public Security University of China to participate in exchange programs.
I hope it helps you.