An ex-NYPD officer has admitted to transporting more than 100 grams of heroin for Tekashi 6ix9ine's former Nine Trey Bloods gang.

Arlicia Robinson accepted a plea deal on November 27 after owning up to moving the drugs from the Bronx to Manhattan on July 25 last year.

The transcript of the hearing has been removed from the public record, according to the New York Post.

Robinson was charged on November 19 last year with three drug counts and will face sentencing in March.

Arclicia Robinson accepted a plea deal on November 27 after owning up to moving the drugs from the Bronx to Manhattan on July 25 last year. Pictured is Tekashi 6ix9ine in court last year

Rapper Tekashi 6ix9ine, whose real name is Daniel Hernandez, was a notorious member of the Nine Trey Bloods gang and is expected to be sentenced on Wednesday for his involvement in alleged drug sales as well as several shootings in 2017 and 2018.

The 23-year-old is facing a minimum of 47 years in prison but could get time served for helping police in their investigation into the gang.

Rapper Tekashi 6ix9ine, whose real name is Daniel Hernandez, was a notorious member of the Nine Trey Bloods gang and is expected to be sentenced on Wednesday for his involvement as well as several shootings in 2017 and 2018

Tekashi was charged with his Nine Trey affiliates last year in an indictment outlining their alleged involvement in drug sales and two shootings in New York City.

Facing a string of charges including racketeering and firearms offenses, the rapper immediately flipped against the others and agreed to cooperate with prosecutors in hopes of earning himself a break at his own sentencing.

He pleaded guilty to nine federal charges including ones related to racketeering, conspiracy, firearms offences and drugs trafficking.

Under the plea deal he testified against two high-ranking members - Anthony 'Harv' Ellison and Aljermiah 'Nuke' Mack - who were both subsequently convicted.

Tekashi also testified that rapper Cardi B was a Blood member.

In a plea for lenient sentencing, Tekashi wrote a grovelling letter to a New York judge.

Tekashi, who was charged along with five other 'Nine Trey' gangsters in November 2018, was mocked by the Hip-Hop community for turning 'snitch' and cooperating with prosecutors in a bid to earn himself a lighter sentence.

And sources at Tekashi's detention center told TMZ that he is feeling the pressure ahead of his sentencing hearing on Wednesday.

The source said he is incredibly nervous and that he has no idea what to expect.

In the letter obtained by TMZ, Tekashi writes: 'I'm sorry to the victims who were affected by my actions, to my fans who look up to me and were misled, to my family who depends on me and to this courtroom for this mess that I contributed to.

The rapper, 23, is facing 47 years in prison but could get time served for helping police in their investigation into the gang

'I'm truly sorry for the harm that I've caused. If given a second chance, I will not let this Court down and I will dedicate a portion of my life to helping others not make the same mistakes that I've made.'

Known almost as much for his tattooed, rainbow-haired look as for his music, Brooklyn-born Tekashi was a social media phenomenon before becoming an ascendant name in hip-hop.

At the height of his popularity he had 15.5 million followers on Instagram. Following the trial, that number had dropped by over one million.

Tekashi's album Day69: Graduation Day was among the top-sellers on iTunes following its February 2018 release.

His biggest songs were the multiplatinum hit 'Fefe,' with Nicki Minaj, which peaked at number three on the pop charts, and 'Stoopid,' featuring the incarcerated rapper Bobby Shmurda.