The Australian men's sevens team have been given a warning about behaving responsibly after members of the squad had a boozy night in Rio.
After finishing up competition with a disappointing eighth-placed finish, players went out for a big night and returned to the athletes' village after sunrise.
Captain Ed Jenkins reportedly lost his accreditation before finding it again and being admitted into the village.
The AOC confirmed that while the players were not causing trouble, Chiller had spoken to the team about their obligations around behaviour post-competition.
Chiller told Fairfax "I read them the riot act" but News Corp understand the chef de mission did not speak to any players.
Sources say Chiller spoke to team leaders of all sports who had finished competition - including shooting, gymnastics and rowing - about the dangers of being out in Rio while drinking, and places to avoid.
Chiller made it known this year she would take a firm stance on athlete behaviour at the Games.
A total alcohol ban was put in place inside the athletes village and though they weren't banned from drinking outside it, Australia's Olympians were given a code of conduct to follow called "responsible behaviour directive".
It was intended to ensure that no athlete is distracted by loud and drunken compatriots returning to the village. Chiller told of how she suffered in the Sydney Olympics as an athlete who competed in the final days.