Rhona Smith began her 10-day visit to Cambodia on Tuesday and is scheduled to meet with more government officials in the coming days.
The protest Tep Vanny helped lead was held to demand compensation for victims of forced eviction, but it turned violent when guards refused to allow protesters to deliver a petition.
Sentence is latest blow to Cambodia's opposition, which has accused the government of intimidating its activists and using the judiciary to silence critics.
Publishers and filmmakers have raised public awareness about social issues for decades; video game makers now hope to reach the younger digital generation in the same way.
Hun Sen called CNN’s report into child sex trafficking in Svay Pak, on the outskirts of Phnom Penh, an “insult which can’t be tolerated.”
UN officials this week remained tight-lipped about the purpose and scope of Smith’s visit to Cambodia.
The donation was made to Kem Rithisith, Ley’s brother, and will go towards to construction of a $170,000 marble stupa in honor of the political critic.
Kem Ley was a regular feature of pro-opposition and independent talk radio stations, where he often made comments critical of the government.
The Licadho report went on to detail what it said was the routine shutting down of peaceful protests and inflammatory rhetoric in the run up to local elections last month.
They were arrested in early May last year and charged with allegedly bribing a witness in a case against opposition leader Kem Sokha.
In fact, as the number of people killed in land conflicts around the world soars, more than half of the dead have been women, rights watchdogs say.
In a statement on Tuesday, the Extraordinary Chambers in the Courts of Cambodia (ECCC) said the decision marked the conclusion of more than eight years of investigative work.