According to reports Rihanna is standing by Chris Brown in the wake of the infamous iPhone snatching incident [click here if you missed that] and believes Chris when he says he didn't do it...
From Radar Online
"Chris told Rihanna that he absolutely 1000% didn't steal that phone, and Rihanna has told him she believes him. Rihanna has also told Chris that she will stand by him during the investigation, and whatever the future holds. This was extremely humbling to Chris given their tumultuous past, and he told her how much he appreciated her unwavering support to him, despite the criticism she has endured for recording songs with Chris and welcoming him back into her life," a source close to the situation tells us.
