Disgraced politician Anthony Weiner hired a private investigative firm run by a former New York prosecutor to help deal with the fallout from his underage sexting scandal just two days after his relationship with a 15-year-old girl went public, according to newly unsealed FBI court records.

Weiner's sexting relationship with a high school sophomore was first reported by DailyMail.com on September 21, 2016.

Two days later, he turned over his cell phone, iPad and laptop to Granite Intelligence, a Manhattan-based firm that specializes in 'intelligence, investigation, and risk management services'.

In a federal warrant unsealed last week, federal investigators noted that Weiner's electronic devices were being held by the private firm when the FBI tried to obtain them on September 26, 2016.

Anthony Weiner, pictured after being sentenced last year, gave his cell phone, iPad and laptop to the Manhattan-based Granite Intelligence just two days after his sexting relationship with a 15-year-old was revealed

In a federal warrant unsealed last week (pictured above), federal investigators noted that Weiner's electronic devices were being held by the private firm when the FBI tried to obtain them on September 26, 2016

The warrant requested an iPhone 'that as transferred from the Target Subject [Weiner] to Granite Intelligence LLC (the 'Security Firm') on September 23, 2016' and is 'currently housed at the Security Firm's office'

The warrant also requested an iPad and a Dell laptop that Weiner gave to Granite Intelligence and that 'currently is housed at the Security Firm's office'

The warrant requested an iPhone 'that as transferred from the Target Subject [Weiner] to Granite Intelligence LLC (the 'Security Firm') on September 23, 2016' and is 'currently housed at the Security Firm's office'.

The warrant also requested an iPad and a Dell laptop that Weiner gave to Granite Intelligence and that 'currently is housed at the Security Firm's office'.

The document does not say whether Granite Intelligence performed any other services for Weiner, 53, besides housing his electronics.

The use of private intelligence firms has come under scrutiny recently, after it was reported Harvey Weinstein hired an Israeli intelligence firm to gather information of his sexual assault accusers.

Granite Intelligence is run by Jeffrey J. Mueller, a former New York City prosecutor.

Co-founder R. David McDonough is a former investigator at Kroll, another private security firm that reportedly worked with Weinstein.

According to the website, the firm specializes in investigations, business intelligence and litigation support.

It says it uses 'a combination of investigative, accounting, financial, technical and industry skills and resources to efficiently resolve our clients' problems'.

Granite Intelligence said it also 'works closely with its private clients to assist in the management of risk and reputation and provide specialized and confidential investigative services'.

Twisted: DailyMail.com's revelations that Anthony Weiner was sexting a teenager sent him to federal prison and prompted the discovery that his laptop contained emails from Hillary Clinton sent from her notorious secret server

Sick: Anthony Weiner's depraved sexts to an underage girl were revealed by DailyMail.com, setting off the probe which uncovered that Hillary Clinton emails were on his laptop

Weiner also sent the girl suggestive photos of himself, complimented her body, told her he woke up 'hard' after thinking about her, and called her 'baby'

Their sexting relationship lasted for several months, during which Weiner asked the underage girl to get undressed over video chats and dress up in school girl costumes. Text messages obtained by DailyMail.com show Weiner was aware of the girl's age, as she discussed being in high school and getting her learner's permit

'We offer wide-ranging specialty services to help meet the demands of high-net-worth individuals and families, family and multi-family offices and trusts,' said the website.

According to the unsealed court warrant, the FBI was searching for the name and identity of Weiner's victim, including 'photographs, contact lists, address books, instant messages, chats, text messages, emails, and photographs or videos sent to and received by minors'.

They were also searching for evidence of child pornography or images of the victim.

In addition, they wanted to pinpoint the times the messages were sent and whether Weiner as personally using the devices.

Apparently a report from the Justice Department inspector general will slam senior FBI leaders, including James Comey, claiming they did not move quickly enough when agents realized Weiner had a trove of her emails on his laptop.

Some FBI officials knew in September 2016 of Hillary's emails on Weiner's laptop but the bureau did not obtain a warrant to review them until the following month.

DailyMail.com interviewed Weiner's victim, who was a 15-year-old high school sophomore when she and the disgraced politician began messaging each other on Twitter and Facebook in January 2016. Weiner was 52 years old at the time.

Their sexting relationship lasted for several months, during which Weiner asked the underage girl to get undressed over video chats and dress up in school girl costumes.

Text messages obtained by DailyMail.com show Weiner was aware of the girl's age, as she discussed being in high school and getting her learner's permit.

Weiner also sent the girl suggestive photos of himself, complimented her body, told her he woke up 'hard' after thinking about her, and called her 'baby'.

Weiner stepped down from congress and lost a promising mayoral campaign due to previous sexting scandals. During one of the scandals, he sent a woman a photo of his crotch with his son lying near by

Weiner, pictured above with his ex-wife, Huma Abadin, and their son Jordan, said he has also been in treatment for sexting addiction and planned to continue treatment while at Federal Medical Center Devens, a prison in Ayer, Massachusetts

In one message, he told her: 'I would bust that tight p***y so hard and so often that you would leak and limp for a week.'

The former politician, who stepped down from congress and lost a promising mayoral campaign due to previous sexting scandals, pleaded guilty last May to sending obscene images to a minor.

He was sentenced to 21 months in prison last fall.

Weiner apologized to the victim in court during his sentencing last year, saying: 'I have a sickness, but I do not have an excuse.'

He said he has also been in treatment for sexting addiction and planned to continue treatment while at Federal Medical Center Devens, a prison in Ayer, Massachusetts.

The unsealed warrant, filed in the Southern District court of New York and signed by Judge Ronald Ellis, shows that federal investigators wasted little time before seizing Weiner's electronic devices.

It was filed five days after the scandal broke. During its search, the FBI ended up finding emails between Hillary Clinton and Huma Abedin that were not previously turned over during the investigation into Clinton's private server.

The discovery led the FBI to reopen its investigation into Clinton's emails less than two weeks before the election.

In a last-ditch plea for leniency, Weiner's lawyers said their client had already suffered significantly due to the crime's unintended impact on the 2016 election.

The argument was dismissed by the judge, who said Weiner's prior scandals had not been enough to deter him from sexting a minor.