Voter turnout in Fairfax was high at 70 to 80 percent compared to the national level, where fewer than half of the electorate voted.
Normally, prisoners must be released after a maximum of six months if the courts have failed to gather enough evidence to take the case to trial.
About 20 percent of eligible voters have yet to register, many of whom are believed to be migrant workers.
In late August a committee set up to discuss the issue decided to draft a letter to France asking the former colonial power to assist in resolving the dispute.
Chhoun Chheng, who works in the same factory as Sert, said that he was refused the opportunity to register twice, once in Battambang and another time in Banteay Meanchey.
The US presidential election was held on November 8 with victory going to the Republican candidate Donald Trump.
National defense and security spending will increase by more than a fifth, to $822 million, while the Ministry of Economy and Finance will also receive a large hike of 13 percent, to $322 million.
Immigration and border security would be priorities for a CNRP administration, he added, because of what he described as “invasions” of Cambodian territory by illegal immigrants and foreign interests.
Propositions 55 and 57 received a large number of votes on the same day as president-elect Donald Trump won the general election.
Hang Puthea, National Election Committee (NEC) spokesman, said there had been a lack of cooperation between the authorities and campaigners.
Protests since the election have seen thousands of anti-Trump demonstrators take toe the streets in major cities.
Thak Lany, a senator for the Sam Rainsy Party, was sued by Hun Sen in early August after a video emerged, posted on pro-ruling party website Freshnews, that purported to show Lany blaming Hun Sen for the July 10 killing.