Photo: The Canadian Press. All rights reserved.

Mike Duffy sits in a vehicle outside a Kensington, P.E.I. dog kennel on Friday July 18, 2014. Duffy is now accused of charging taxpayers for personal travel to funerals and giving money to three people under the guise of a consulting contract. THE CANADIAN PRESS/Andrew Collins

The RCMP has provided fresh details of its 31 fraud charges against Sen. Mike Duffy, accusing him of charging taxpayers for personal travel to funerals and providing payments for "illegitimate expenses" to four people.

A new court filing alleges "inappropriate expense claims associated with personal attendance at funeral and related ceremonies."

Duffy is accused of fraudulently awarding a $65,000 contract to his longtime friend, Gerald Donohue. The RCMP allege that Donohue, in turn, paid some of that money to three other people, including a personal trainer.

Donohue has already told investigators that he did "no tangible work" for the money, the RCMP has said.

The court documents allege that Duffy filed eight separate expense claims that the RCMP says involved personal or partisan travel. The claims were filed from June 2009 to September 2012.

The RCMP announced last week that it was charging Duffy with 31 criminal counts related to his expense claims, accusing him of misspending more than $200,000.

The charges stem from the disgraced senator's housing and travel expenses, and a $90,000 payment from Nigel Wright, the former chief of staff to Prime Minister Stephen Harper.

Duffy has denied any criminal wrongdoing. He could not be immediately reached for comment today on the new documents.

The Conservative-appointed senator will appear in court on Sept. 16.

The NDP's Peter Julian says as more details emerge about Duffy's alleged crimes, the questions reach all the way to Prime Minister Stephen Harper's office. He says it's time for the prime minister to "come clean."