An Israeli court has convicted a Gaza aid worker of several terrorism charges in a high-profile case in which his employer, independent auditors and the Australian government say they have found no evidence of wrongdoing.
Mohammed el-Halabi, the Gaza director for the international Christian charity World Vision, was arrested in 2016 and accused of diverting tens of millions of dollars to the militant group Hamas that rules the territory.
The trial, and his prolonged detention, have further strained relations between Israel and humanitarian organisations that provide aid to Palestinians.
Both he and World Vision have denied the allegations and an independent audit in 2017 also found no evidence of support for Hamas.
His lawyer, Maher Hanna, has said Mr El-Halabi turned down several plea bargain offers on the principle that would have allowed him to walk free. Mr El-Halabi has not yet been sentenced.
World Vision said he would appeal the ruling, which was largely based on classified information that has not been made public but was shared with the defence.
The district court in the southern Israeli city of Beersheba said Mr El-Halabi was guilty of several charges, including membership in a terror organisation, providing information to a terror group, taking part in militant exercises and carrying a weapon.
It said he diverted "millions" of dollars every year, as well as equipment, from World Vision and its donors to Hamas.
It said Hamas used the funds for militant activities, as well as children's counselling, food aid and Quran memorisation contests for its supporters. Pipes and nylon diverted to Hamas were used for military purposes, it said.
The court said it was not convinced by World Vision's testimony that it had firm controls in place that would have prevented the diversion of such aid.
The court said the full 254-page decision is "confidential and cannot be made public". It appeared to rely heavily on a confession by Mr El-Halabi that has not been made public.
His lawyer has said the confession was given under duress to an informant and should not have been admitted as evidence.
Speaking to reporters immediately after the verdict, Mr Hanna said he had not yet read the full decision.
Sharon Marshall, a spokeswoman for World Vision who has closely followed the case, said there had been "irregularities in the trial process and a lack of substantive and publicly available evidence".
She said the charity supports Mr El-Halabi's intent to appeal and called for a "fair and transparent" process.
"We strongly condemn any act of terrorism or support of such activities, and reject any attempts to divert humanitarian resources or exploit the work of humanitarian organisations operating anywhere," she said.
The Christian charity operates in nearly 100 countries and annually distributes $2.5 billion ($A3.6 billion) in aid.
Israel says it supports the work of aid organisations but must prevent donor funds from falling into the hands of armed groups like Hamas that do not recognise it and attack its citizens.
In a statement, the Israeli Foreign Ministry acknowledged the verdict while saying it "continues to support international efforts to provide assistance to the Gazan population".
After Mr El-Halabi's arrest, World Vision suspended its activities in Gaza. World Vision worked with several donor countries to construct an independent audit of its activities in Gaza.
It declined to name the auditors because of a non-disclosure agreement, but last year the Guardian newspaper identified them as the international accounting firm Deloitte and DLA Piper, a global law firm.
A team of around a dozen lawyers, including several former assistant US attorneys, reviewed nearly 300,000 emails and conducted more than 180 interviews.
Forensic auditors scoured nearly every financial transaction at World Vision from 2010 until 2016.
In July 2017, they submitted an over 400-page report of their findings to World Vision, which shared it with donor governments.
World Vision said it offered the report to Israel but Israeli authorities refused to sign the non-disclosure agreement.
Brett Ingerman, a lawyer with DLA Piper who headed the investigation, confirmed its involvement and said earlier this year that the report found no evidence that Mr El-Halabi was affiliated with Hamas or had diverted any funds.
Instead, he said it found that Mr El-Halabi had enforced internal controls and ordered employees to avoid anyone suspected of Hamas ties. The Australian government conducted its own review, reaching similar conclusions.
Australia was the biggest single donor to World Vision's humanitarian work in Gaza, providing $US4.4 million in the previous three fiscal years before Mr El-Halabi's arrest.
There was no immediate comment on the verdict from Australian officials.
