A judge Friday conveyed his disapproval over a plea agreement that would have sent Kristen Diane Parker - the former surgical technician at Denver's Rose Medical Centre accused of exposing hepatitis C infections among patients - to federal prison for 20 years.

The federal judge revealed that a 20 year imprisonment is not enough for the crime.

Kristen Diane Parker, the 26-year-old operating room technician of the Rose Medical Center, is in federal custody - she is charged with substituting her used, dirty syringes refilled with saline solution for those containing the painkiller fentanyl; thereby exposing as many as 5,700 patients to hepatitis C, during her hospital tenure from Oct. 21,
2008 till April 13 this year!