1-866-283-9090 (24 hours a day, 7 days a week) The Department of State activated the helpline to ensure the health and safety of its exchange participants. Students have a right to be treated fairly and to report abuse without retaliation or threat of program cancellation. (Dep of State)
Foreign student exchange 
Mr. Van Wey has now moved back to China where, thanks to a forged criminal record check courtesy of time spent in Poland, he is free to assault and abuse students to his hearts content.
Have you notified the authorities of this?