A government spokesman said offenders could also receive a fine of more than $15,000.
Interior Minister Sar Kheng comments came after the country’s top military police official labeled the CNRM a terrorist group.
The case against Laysreng was filed in October by Ky Tech, a lawyer for Hun Sen who was recently appointed to the CPP’s Central Committee.
Sao Sokha said that Sam Rainsy and the CNRM were “preparing for terrorism, not politics, only terrorism.”
On Wednesday, Rainsy asked Hun Sen on Twitter to “postpone the next national elections until we all have guarantees that those polls meet minimum international standards.”
Following the closure of RFA’s office in Phnom Penh, the information ministry warned its former staff that they would be arrested if they continued to report from Cambodia.
The court also ruled that more than 100 CNRP officials would be banned from politics for five years.
Hun Sen’s speech followed a statement by U.S. Senator Ted Cruz last week that criticized Cambodia’s government over the arrest of opposition leader Kem Sokha and attempts to dissolve his Cambodia National Rescue Party.
The court is due to issue a decision in a case against the Cambodia National Rescue Party on Thursday, which is expected to lead to the party’s dissolution.
Hun Sen said non-Cambodians should not interfere in Cambodia’s internal affairs and claimed the Cambodian people saw the arrest of Sokha as adhering to Cambodian legal procedure.
The court has also summoned Kem Sokha’s lawyers to attend the questioning, scheduled for November 24.
Prime Minister Hun Sen has said he is willing to take bets at 1/100 odds that the opposition will be dissolved following a court decision due later this month.
A large-scale funeral was held shortly after July last year in Phnom Penh, followed by a separate funeral in Kem Ley hometown in Takeo province.
Speaking by phone from Australia on Monday, Ngim Nheng said the letter was a forgery intended to damage his public standing.
The Water Festival, which runs from November 2 to 4 this year, typically draws several million visitors to the Phnom Penh.
The warning, although vague, was one of the strongest statements to date by one of Cambodia’s donors over the unfolding political crisis in the country.
Earlier this month, the Interior Ministry filed a lawsuit with the Supreme Court seeking to dissolve the CNRP after Kem Sokha was charged with committing “treason.”
Sok Hour was jailed on charges of using forged documents he claimed detailed Vietnam’s encroachment on Cambodian territory to incite people against the government.
Speaking to VOA Khmer on Tuesday at the Capitol building, the three House of Representatives lawmakers urged the international community to act against Prime Minister Hun Sen’s government.
In a letter dated October 23, Kem Sokha called on Cambodians to “protect the Paris Peace Accords’ purpose and especially the constitution.”
ព័ត៌មានផ្សេងទៀត