In particular, he has opposed the early release of persons convicted and imprisoned for offences related to the Fiji coup of 2000, and the promotion of legislation which he believes undermines respect for the rule of law.
Leung strongly opposed the government's decision, announced on 29 November 2004, to release Vice-President Ratu Jope Seniloli from prison, where he had served little more than three months of a four-year sentence for his role in the Fiji coup of 2000.
Addressing the annual conference of the Commonwealth Parliamentary Association in Nadi on 8 September, Leung said that the concept of true democracy was not well understood in Fiji.
"But time, patience and a genuine commitment not just of the country's leaders towards creating an environment that will allow democracy, human rights and the rule of law to flourish, will be required."
On 21 May 2005, Leung joined numerous politicians, human rights organisations, and the military in opposing the government's proposed legislation to establish a Reconciliation and Unity Commission, which would be empowered, subject to presidential approval, to grant compensation to victims of the 2000 coup and amnesty to persons found guilty of involvement in it.
Leung said that he and the Law Society supported the bill's purported aims of reconciliation, tolerance, and unity, but were strongly opposed to the amnesty provisions of the legislation, which he said were "repugnant" and would empower politicians to overturn judicial decisions.
In a letter to Prime Minister Laisenia Qarase on 23 May, Leung said that as reconciliation and forgiveness were matters of the heart, they could not be legislated, and the bill would therefore fail to achieve its stated objectives.
Citing the Fijian cultural inhibition on frank expression of strong opinions, he said that it would be unwise for the government to interpret the silence of the majority of its citizens as approval of its agenda.
In a parliamentary submission on 16 June, Leung called the bill a recipe for instability, terror and payback, and a retrograde step, which could threaten present and future governments.
"It would encourage the belief that if people think they have sufficiently good political reason to topple a government, politicians might consider granting them a pardon," Leung said.
On 4 July, the Fiji Times revealed that Leung had been trying for over a week to schedule a meeting with the Prime Minister, without receiving a response.
On 3 September 2005, Leung fended off a challenge from Lautoka-based lawyer Iqbal Khan to win a second term as president of the Fiji Law Society, amassing 91 percent of the vote.
On 5 October 2005, Leung was named judge advocate of a court martial panel to retry 20 soldiers convicted of mutiny in relation to the Fiji coup of 2000.
The reasons for the dismissal and reinstatement were not fully clarified, but it was understood that the President had wanted to explore the matter thoroughly before ratifying Leung, the choice of the Military, as judge advocate.
When the military commander, Commodore Frank Bainimarama, raised questions about why the commissioning process was taking so long, Home Affairs Minister Josefa Vosanibola revealed on 21 December that the government objected to what he said were Leung's exorbitant fees.
On 4 January 2006, Home Affairs Minister Vosanibola announced that Leung had been approved as judge advocate, and commissioned as an army officer, with the rank of lieutenant colonel.