What role did police play when students-traders clashed in New Market?

On 18 April, a trifle turned into a violent clash between students and traders around the New Market area in Dhaka -- with 2 persons getting killed, more than 60 being injured, and loss of property in millions of takas.

So, when that mayhem was brewing, what were the law enforcements doing? Who will bear the responsibility of an unrelated youth dying on his way to work?

In Star Viewsroom, Debjani Shyama tries to understand what really happened in the students-traders clash in New Market with The Daily Star Bangla Editor Golam Mortoza.