LONDON - Pop star Britney Spears’ father Jamie Spears wants to take her former manager Sam Lufti to court because he believes he drugged her.

‘Jamie is determined to pursue a criminal prosecution. He believes Sam tried to take control of Britney’s life and finances,’ a source close to Jamie Spears was quoted as saying by thesun.co.uk.

Lufti, 34, denies the claims and insists that he did not dose Britney with sedatives and anti-anxiety pills. He also accuses Britney of breach of contract and is suing both her and her dad.

He claims that Jamie, 56, pushed him and is ‘violent and unpredictable’.