Michael Jackson's kids reportedly investigating late father's accusers Wade Robson and James Safechuck

Michael Jackson's children Prince, Blanket and Paris are investigating their late dad's two accusers. Photo / Getty Images.

Michael Jackson's children are reportedly secretly investigating the two men that accused their father of sexual assault in the controversial documentary Leaving Neverland.

Jackson's kids are exploring legal options against his accusers Wade Robson and James Safechuck but the The New York Post reports they are have also launched an investigation into the pair ahead of filing a lawsuit.

Robson and Safechuck have remained in the headlines after making shocking claims against the late King of Pop in the Leaving Neverland documentary earlier this year.

Michael Jackson's family are trying to protect their dad's legacy following the release of the documentary Leaving Neverland. Photo / AP.

The New York Post reports Jackson's three kids - Prince, Paris and Prince Michael Jackson II, aka 'Blanket' – are now pressing to learn whether wether of the pair were paid in any way for their participation and are on the look-out for any inconsistencies in their various accounts of the alleged abuse.

The director of Leaving Neverland, Dan Reed, has previously insisted they weren't financially compensated.

The New York Post reports a source close to the Jackson family revealed the kids are set to launch a lawsuit for fraud, emotional distress, slander and misrepresentation.

The report also details that the trio are not seeking any money, rather they want Robson and Safechuck to accept "responsibility" and to provide the family with an "apology" with any payment to be given to charity.

The children, as part of their digging, are said to be looking closely into Robson's Hawaii-based charity.

Wade Robson, Leaving Neverland director Dan Reed and James Safechuck pose for a portrait to promote the film. Photo / Supplied.

The Blast reports that around the time of the release of Leaving Neverland in January, Robson established the 'Robson Family Fund' through the Hawaii Community Foundation.

People have criticised both Robson and his wife Amanda, accusing them of profiting from the high-profile documentary, and it was initially unclear where any donations would go.

Robson later tweaked the name of the charity, changing it to 'Robson Child Abuse Healing and Prevention Fund', and funds are required by law to be distributed throughout non-profit organisations.

The New York Post reports a spokesperson for the Jackson family said: The three children say that all they want is to preserve their father's musical legacy. They feel that the 'documentary' was one-sided and the two men have made numerous claims that aren't true. As for the allegations, they believe that per their own investigation and other news sources, money raised by the two men and maybe others has not gone to a charity or to promote anything positive. They want formal answers on the 'charity' issue of Mr. Robson and his 'donation' and more. They certainly haven't used their new platform and that is the point. The Jacksons use theirs to help others. It's the principle, but it's also possibly illegal and they want answers."