need a help.

My uncle is here from last 15 months with the multiple visa of 5 years. I know his visa was already expired. While he was travelling from one state to another he had been caught by police. He was asked for identity card and he showed his expired passport. At that same reason ( expired visa ) he had been detained by police. My uncle told me that .. police told him to contact his lawyers.  Guys did u  heard any cases like this, and is there any probabilty to releases of him. Please help