The police of the Mudanjiang City Police Department in Heilongjiang Province persecute Dafa practitioners viciously. They force fed Dafa practitioners with mustard oil, each time one bottle per Dafa practitioner. Right after force-feeding, the police would cover practitioners' heads with plastic bags tightly. Unable to breathe, practitioner's lives were soon in grave danger. Dafa practitioner Li Hongmin died as a result of this inhuman torture.