Mr Hizbullah, who is from the minority Muslim community, spent more than a year in prison before the charges were levelled in April 2021, and he has remained in prison since. His trial is due to begin later this month. His wife firmly rejects the charges.
“He was outspoken, very active in defending Muslim rights and minority rights in general,” she told the BBC. The charges against her husband were “a message to anyone who wants to speak about against racism, against discrimination”, she said.
Mr Hizbullah was first arrested in connection with the devastating 2019 Easter Sunday suicide bombings, carried out by local Islamists. More than 260 people were killed when high-end hotels and churches were targeted.
Initially, he was accused of having links with one of the bombers. His lawyers say the prosecution later dropped those allegations after they pointed out that he had only appeared in two civil cases involving property disputes for the father of the attacker, a well-known spice trader.
Amnesty International last year called Mr Hizbullah, a vocal critic of the government, a “prisoner of conscience”.
Activists say that the arrest of Mr Hizbullah is part of ongoing harassment of the minority community in recent years. Ethnic fault lines run deep in Sri Lanka, where Muslims constitute less than 10% of the country’s 22 million people, who are predominantly Sinhalese Buddhists.
Muslims were allies of the government during the nearly three-decade war against the Tamil Tiger rebels, who were fighting for a separate homeland for the other minority Tamil community.
But Muslim leaders say the attitude of a section of the majority Sinhalese towards them changed after the war ended with the defeat of the Tamil Tigers in May 2009.
Rights groups point out that there had been anti-Muslim riots, targeting houses and businesses, by the ethnic Sinhalese mob even before the Easter Sunday attacks took place.
The Easter Sunday bombings were a watershed moment. Weeks after the attacks, Muslim properties and mosques were vandalised by Sinhalese mobs and hate speech became virulent on social media. The Muslim community was demonised and there were calls by Sinhalese hardliners to boycott Muslim shops.
The current president, Gotabaya Rajapaksa, who as defence secretary led the war efforts against the Tamil rebels, came to power in November 2019 with a strong backing from Sinhala Buddhist nationalists. He campaigned on a platform of national security.
With his elder brother Mahinda Rajapaksa winning parliamentary elections a year later, the Rajapaksas firmly tightened their grip on power.
“For the government it is a trump card that they keep using to keep the vote base – saying that there is a threat to the country from Islamic extremists,” Hilmy Ahamed, from the Muslim Council of Sri Lanka, told the BBC.
During the pandemic, the government initially did not allow the bodies of Covid victims from the minority Muslim and Christian communities to be buried. Several bodies were forcibly cremated, despite experts saying that bodies could be buried with proper safety measures.
The cremation of bodies is forbidden in Islam. Officials at that time argued that the burials could contaminate ground water.
After an uproar from the minorities and rights groups, the government last year finally allotted a designated space in eastern Sri Lanka for Covid victims to be buried.
The government last year also came with a proposal to ban the wearing of burqas and all other forms of face coverings citing national security concerns. A minister said “it was a sign of religious extremism that came about recently”.
And there was a plan announced to shut down more than 1,000 Islamic religious schools, which the government said were flouting national education policy.
“In the post-war period, Muslims have become the new enemy,” said Bhavani Fonseka, a human rights lawyer.
“We have seen several incidents where the Muslim community has come under attack. I would say the community is under siege,” she said.
But the government rejects the charges that they were treating the Muslim community unfairly.
Mohan Samaranayake, Director General of the Sri Lankan Government’s Information Department, told the BBC: “There is no institutionalised, systematic policy of discrimination against any community. But I admit the fact that there may be problems faced by all communities, including the Sinhalese.”
With regard to the proposal to shut down madrassas, he said: “The decision was taken after investigations into the Easter Sunday bombings found that certain educational institutions were used to radicalise Muslim youth.”
The government has also triggered some controversy with its recent efforts to bring in a uniform law code for all communities. Critics say the “Task Force for One Country, One Law”, appointed by President Rajapaksa last November to bring legal reforms, is aimed at minority communities.
The taskforce has been instructed to look at special laws surrounding marriage and inheritance for minorities and for some of the majority Sinhalese and make recommendations for a uniform set of rules. The appointment of Galagoda Aththe Gnanasara to head the committee has also triggered outrage among minorities – Mr Gnanasara is a controversial Buddhist monk accused of spreading sectarian hatred and anti-Muslim rhetoric.
Speaking to the BBC, Mr Gnanasara said the legal reforms were long overdue. He also said he was only raising key issues facing the country.
“More than 500 Christian groups have been operating in this country with the aim of creating religious problems,” he said. “There are Islamic groups promoting Wahabism, Salafism and they are misleading the youth of this country.”
Sri Lanka is already facing an economic crisis because of its dwindling foreign exchange reserves. The import restrictions have increased prices of some essential commodities by up to 30% in the past year, making the government unpopular even among the Sinhalese Buddhists.
Among Muslim leaders, there is a feeling that the current financial crisis has shifted the focus away from their community for now. But they say further trouble can be prevented only when Buddhist nationalism is reined in.