Professor Sum Chhum Bun says the literature, arts and culture during the regime were used for Marxist-Leninist ideology.
Cambodia has a total nine mobile operators for its 6.3 million users.
The seven suspects, including a Thai member of parliament, were detained last week for allegedly crossing the border illegally.
Residents say they will sit at Freedom Park, for a week in search of mediation.
The law will require NGOs to provide financial reports and action plans to the government.
According to officials, more than 1,600 Cambodians died in road accidents in 2010.
According to reports, the defendants were on a fact-finding mission investigating Thai claims of Cambodian border encroachment.
Residents say they want $1,500 per square meter, or 15 hectares slotted for themselves in the new development.
Nearly three quarters of all the rapes involved girls under the age of 18.
They were charged with illegally crossing the border and entering a military area.
More than 1,000 of 4,000 families have already been evicted or have moved from Boeung Kak lake area.
Richardson's visit follows a high-profile trip by US Secretary of State Hillary Clinton in November.