Prominent activists agree that the main obstacle for an effective commission will be its lack of protection mechanisms and independence.
Hun Sen said the remarks were impolite and disrespectful following a 10-day visit this month.
The legacy of the Khmer Rouge, which destroyed the courts, and former control by Vietnam both hampered the development of the system.
Subedi said last week he was not confident the courts could bring justice to the people of Cambodia.
At least 25 businesses last week signed an agreement of principle to ensure that their companies don’t violate the rights of workers.
The regulation, signed by Prime Minister Hun Sen May 31, calls on authorities to make lists of squatter communities.
Ung Rithea is currently in jail and awaiting trial of fraud charges related to the case.
Mu Sochua told VOA Khmer she has no intention of paying the fine.
Sam Rainsy is currently on a visit to the US to build political support for his party, which holds 26 seats in the National Assembly.
The ILO estimated in 2007 an influx of 270,000 Cambodian job seekers entering the market each year.
The letters now appear to be part of a business dispute with four other foreign men, who were found to be no threat.
Mu Sochua said she would not pay the fine.