London, February 5 : Jamie Spears has sworn to get his daughter Britney's former pal and manager criminally prosecuted for drugging the singer, according to reports.

The 56-year-old, who, along with their lawyer, oversees Britney's affairs as co-conservator, had obtained new restraining orders against Sam Lutfi, alleging harassment by her `ex-pal'.

And now, Jamie, who further held Lutfi responsible for creating distances between the pop princess and her family, was said to be eager to face Lutfi in the court for apparently providing Britney with sedatives and anti-anxiety pills.