The phrase "accusation is based" is correct and usable in written English.
It can be used when discussing the foundation or reasoning behind an accusation made against someone or something.
Example: "The accusation is based on circumstantial evidence that has yet to be substantiated."
Alternatives: "the allegation is founded" or "the claim is grounded".
His accusation is based mainly on a detailed chart from the Pentagon's Ballistic Missile Defense Organization that gives an overview of its program for Integrated Flight Tests of the kill vehicle.
Nisman claims that his accusation is based on "irrefutable proof" against the president, contained in a 300-page report presented in court on Wednesday morning, and that it is based on two years of investigations and wiretaps conducted by sources within Argentina's Side secret service.
The accusation is based on the unauthorised transfer of approximately US$100 million, donated by The Norwegian Agency for Development Cooperation (NORAD), from one Grameen entity to another in 1996, before the expiry of the Grameen Bank's tax exemption.
That accusation was based on supposed forensic analysis which they have not publicly produced after refusing to participate in joint inquiries.
He said the plagiarism accusation was based "false information," pointing to his "complete exoneration" by the state's Office of Attorney Regulation Counsel.
Mr. Spielman said the accusations were based on inaccurate information.
The accusations were based on the statement of a soldier.
Mr. Kenyatta has insisted that he is innocent and that the accusations are based on gossip.
The accusations are based on the testimony of 175 witnesses before the commission.
Judge Leon said the accusations were based on testimony from other Guantánamo Bay detainees, which he found unreliable.
He said that the accusations were based on the testimony of one man, whom he identified as Abu Muttalib Maghrebi, and that they were circumstantial.
