The phrase "further accuses" is correct and usable in written English.
It can be used when you want to indicate that someone is making additional accusations or claims beyond what has already been stated.
Example: "The report not only highlights the initial allegations but further accuses the organization of misconduct."
Alternatives: "also alleges" or "additionally charges".
Malhotra further accuses Murphy of leaving her staff scared to be alone in the office.
The report further accuses the doctor of submitting fraudulent statements to insurance companies and hospitals to cover infertility treatments, and of pressing patients to evade state investigators.
The trading commission's complaint further accuses Intrade — and an affiliated company, Trade Exchange Network Ltd. — of filing bogus annual forms with the agency.
Although the princess has always distanced herself from Ducruet's financial dealings, the judge further accuses the authorities of covering up the stink because it got too close to the Royal Family.
Amnesty's report, Forced Back to Danger: Asylum-Seekers Returned from Europe to Afghanistan, further accuses European governments, including the UK, of being "determined" to return young Afghans despite being well aware of the unfolding "horrors" in the country.
It further accuses Ghappour of "co-ordinating" and "approving" the use of the media, and alleges that between them they have spread "gross fabrications and substantially false recitations of facts and law which may harm both the government and the defence during jury selection".
Fahmy and Baher are further accused of being MB members.
An ITV source went further, accusing the BBC of a "cynical scheduling clash".
Democratic officials went even further, accusing the administration of accounting tricks and obstinacy.
They further accused their own local of failing to protect them in the dispute.
He further accused the station of "rewarding people who take Denis O'Brien's view of things".
