He then spent two years in the Army’s neurological department at the Army’s Hospital No. 2 and was a forensic pathologist at the Ministry of Justice for one year. Chehrazi was a forensic pathologist at the time of Taghi Arani’s death, but refused to confirm the false death certificate of Arani. Chehrazi wrote and published the first book on medical ethics in Homeland, entitled Physician and Society, in 1938. Chehrazi was very interested in his hometown of Bagh-e Bahadoran, and for this reason, with his personal capital, he founded drinking water facilities, electric motors, telegraph offices, telephone booths, municipal buildings, office supplies and paid the total cost of the first year of Bagh-e Bahadoran municipality up to the revenue generation stage.