C102 Assisting investigations

Old Chen said, "Think about it, why would those robbers have submachine guns? If ordinary people could get their hands on guns, it would be understandable. However, submachine guns are not that simple. They are organized and disciplined, so it might be troublesome for them to speak up. That's why I wanted to ask for your help. "

At this point, Elder Chen's phone suddenly rang. He picked it up