Here below find answer to the question Is Milan safe at night ?
Be careful when walking in front of Duomo. This is where a lot of crimes happen. The main crime likely to affect tourists in Milan is the little thieves. You have to pay attention to your bag on public transport and while walking in crowded squares.
The streets of Milan stay busy at night, and it is relatively safe for visitors to be out and about. The busses and trams run all night long, so there are almost always other people around.