The police force was first set up to maintain law and order in the Islamic States during the Caliphate of _____ ?

1. Hazrat Umar (R.A) established Islamic calendar.
2. Hazrat Umar (R.A) established the department of finance.
3. Hazrat Umar (R.A) established the Town plaining department.
4. Hazrat Umar (R.A) established the Police Department.
5. Hazrat Umar Farooq formed a parliament namely Majlis e Aam.
6. Hazrat Umar Farooq destroyed idol “Sawa”.
7. Hazrat Umar (R.A) born in 581 A.D.