A 19-year-old woman is brought to the hospital by police 6 hours after alleged rape by a known person. On examination, she has bruising on the inner thighs, a 1.5 cm laceration on the hymen, and vaginal bleeding. She is extremely distressed and requests immediate discharge. The examining doctor collects forensic evidence and documents injuries. The woman refuses to file a formal complaint with police. Under the Indian Penal Code, what is the legal obligation of the examining physician?