Observers say the law grants Prime Minister Hun Sen sweeping and dangerous powers.
Local official says prolonged epidemic could push back December 2021 completion date.
The announcement comes as a Beijing court jails two social media users for criticizing President Xi Jinping.
Sonam Dhargye carried a flag with a color photo of the Dalai Lama at a festival in 2015.
Sources say the officials conspired to sell imported soybean oil on the open market.
With little money, they are receiving some food from local groups and have asked the government for help.
The group calls for the release of those facing minor charges and who have underlying health issues.
State Department decries 'the latest in a long string of PRC actions to assert unlawful maritime claims and disadvantage its Southeast Asian neighbors in the South China Sea.'
Near-blanket refusals to answer questions also suggest residents are self-censoring to avoid persecution.
On the day of grave-tending, the nation is in mourning for thousands who died during the coronavirus epidemic that emerged in the central city of Wuhan.