Singer Tulisa Contostavlos leaves Southwark Crown Court in London. Reuters

Documents from Tulisa Contostavlos' drugs trial suggest that the N-Dubz star may have offered money for sex.

Following her acquittal, new information from the case has emerged suggesting that the reporter behind the undercover Sun sting, Mazher Mahmood, may have tried to trick her into selling her body for a leading role in a fake Slumdog Millionaire-type film.

The 26-year-old star had been accused of acting as a fixer by introducing Mahmood to her friend Mike GLC, who supplied £860 worth of cocaine at London's Dorchester Hotel in May 2013.

According to court papers, Contostavlos claimed that Mahmood, famously known as the 'Fake Sheikh', plied her with alcohol before the conversation turned to prostitution. She said she later declined what she believed to be an offer of sex for payment.

The former X Factor judge is now preparing to take legal action against Mahmood and The Sun for over £10 million in lost earnings.

The case against her was sensationally dismissed after a judge said there were "strong grounds" to believe Mahmood had lied under oath.

"This whole case was a horrific and disgusting entrapment by Mazher Mahmood and the Sun on Sunday newspaper," Contostavlos said after she was cleared of all charges.

"As someone who has ruined my life for the last year, I strongly believe that this type of entrapment should not be allowed to happen to anyone."