Nhek Bun Chhay was taken in for questioning from his home on the outskirts of the capital, Phnom Penh, National Police Deputy Chief Gen. Mok Chito said.
In a statement issued on the same day, Prime Minister Hun Sen congratulated Gen. Banh, calling him a “very capable and loyal operator”.
UN officials this week remained tight-lipped about the purpose and scope of Smith’s visit to Cambodia.
Arrests, conviction symbolizes recent crackdown in Southeast Asia of practice of women paid to carry children for foreign couples.
The government has said it hopes that Battambang, Kampot, and Kratie will gain UNESCO listed status, helping to protect historical buildings and draw more tourists.
Kirt Chantharith, a police spokesman, said that people spreading the fake news on Facebook could face legal action.
The IMF said the new tax collection strategies had seen revenue rise by almost a third to about $1.2 billion in the first six months of the year.
Cambodia last went to the polls in 2013 amid evidence of widespread voter fraud, intimidation, and political violence.
Last month, thousands of undocumented Cambodians began returning to their home country after Thailand passed the new labor law.
Their "Cambodia Identity Product" mobile app was selected from over 1,100 apps worldwide and the girls will compete against other teams from India, Canada, the United States and Hong Kong.
Jolie, a special envoy for UN refugee agency, told Vanity Fair she looked for her lead star in orphanages, circuses and slum schools.
Some $3.5 billion was thought to have been lent to about 2 million families by Micro Finance Institutions in Cambodia by 2016.