>> Li Wenzu was picked up by 30 Chinese agents and barricaded in her home one week ago.>>
> From the moment I stood up and called for his release, the threats and dangers had already begun.
>> She was detained during a protest march to pressure authorities over her missing husband, Wang Quanzhang. He's a lawyer who took on cases of police torture. Her husband is been gone for two years during a crackdown on rights activists under leader Xi Jinping. As Reuters Christian Sheppard reports, house arrest for dissidents isn't new.
But rights groups say now their families are finding themselves targets without committing crimes.>> People who've been put under house arrest by the Chinese authorities complain about CCTV cameras being installed outside their houses, about their instant messaging platforms being monitored. But mostly they complain about state security agents who will follow them around, even perhaps when they're taking their children to school and be a constantly threatening presence in their lives.
>> Li says the agents were often and say they're protecting her. She calls them Smiling Tigers.>> Rights group say that the people of China is placing under house arrest. People of the China wants to stay quiet. They probably haven't done anything that breaks the law, but China doesn't want them to be able to speak out regularly.
So perhaps the wife of a lawyer who has been locked up for over two years without any word wants to campaign for her husband but China doesn't want here to do that. So instead of criminally detaining her, they place her on the house arrest which is seen as a way of avoiding too much attention by keeping her quiet.
>> Li said she's determined to carry on her fight. But the tigers are never far behind. When she was looking for a preschool for her son, she says the agents came too and warned a school against accepting her child because the family was a threat to national security.
Her son still is in preschool.