The Khmer Rouge tribunal on Tuesday heard the testimony of a civil party left traumatized by the workload at the Trapaing Thma dam worksite who said he felt lucky to have survived. But his appearance prompted defense lawyers to air concerns that civil parties testimony was threatening their clients’ right to a fair trial.

The witness, Nhip Hort, was born in 1952 in Battambang province, part of the Khmer Rouge regime’s Northwestern Zone where the dam site was located.

The Khmer Rouge tribunal heard further testimony Monday related to the Trapeang Thma Dam worksite, but the witness’ experience as a company chief supervising workers were hindered by his ailing memory, raising a series of contradictions throughout his questioning.

Rice farmer Chhuy Huy told the court that he supervised 55 workers as a company chief at the dam site in Banteay Meanchey province, part of what was then the Northwestern Zone.

The Angkor Wat temple complex in Siem Reap province is the world’s undisputed top tourist destination, according to Lonely Planet’s Ultimate Travelist 2015, an exhaustive list ranking sights and travel hotspots that was released on Monday.

Cambodia’s national landmark scored 34 percent more votes than its closest competitor, the Peruvian ruins of Machu Picchu.

A former company chief at Trapeang Thma Dam worksite testified for a second day at the Khmer Rouge tribunal on Tuesday, shedding further light on the murderous command of dam boss Ta Val, who he said gave deputies carte blanche to kill their subordinates and would stalk the worksite in disguise.

Chhum Seng, a former Lon Nol soldier who commanded some 100 workers under the Khmer Rouge, drew scrutiny from the defense, which probed contradictions in testimony including his ignorance of an alleged rebellion plot that his colleagues have claimed intimate knowledge of.

A former company chief at the Trapeang Thma Dam worksite told the Khmer Rouge tribunal on Monday how underperforming workers were punished by starvation and were put to a test, such as walking through fire, if it was suspected that they were faking illnesses.

At the dam site, Chhum Seng worked under the brutal commander Ta Val, who he described as “a mean man who everyone was afraid of.”