Iranian morality police violently arrest a woman for not wearing a hijab

In Iran, women are required to wear modest clothing.
Iran's “morality” police place the entire female population – 40 million women and girls – under surveillance

What happens if you don't wear a hijab in Iran?
Two slogans of the 1979 revolution were: "Wear a veil, or we will punch your head," and "Death to the unveiled." Women in Iran who do not wear a hijab may be imprisoned for ten days to two months, and/or required to pay fines from 50,000 up to 500,000 rials adjusted for inflation.