The artifacts were handed over to the Cambodian government at its embassy in Canberra on Thursday.
If charged and found guilty, they will face a one-year prison term, following a complaint by Quick Sew, a factory in Phnom Penh.
Matthew Harland, 38, was arrested in May last year and charged with for buying sex from an 11-year-old and a 12-year-old in 2006.
The families say a buyout offer of $8,500 is too low and they do not want to move to an inferior relocation site.
While Cambodia officially marked International Women’s Day on Tuesday, a coalition of women were forced to sit it out.
One year into the implementation of the anti-corruption law, Cambodia has made a number of high-profile arrests.
For now, 100 days later, Leung Porn remembers his wife and is sorry he had not done more for her when she was alive.
The stampede killed 353 people and injured 393 more when a crowd panicked, in what the government called an unforeseeable accident.
There are 170 Cambodian-Americans filing with the help of the institute as both complainants and civil parties.
For decades, Cambodians here have been much more isolated from their fellow countrymen than from their Lao neighbors to the north.
Many Cambodian villagers took refuge in Siem Reap, while Thais moved to camps several kilometers away from the border.
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