By Preeti Jha, for CNN

It was dark when the plane touched down in Hong Kong from Phnom Penh. Noor Yuni swiftly cleared immigration and collected her luggage. But as she approached the "nothing to declare" lane, a customs officer pulled her aside, she says.

The 21-year-old Indonesian's bag was put into the security scanner and she remembers agreeing to be searched.

By the time officers had slashed open the lining of her backpack and dislodged the white crystals concealed inside, Yuni said she knew she'd been tricked.

Yuni is not her real name. CNN is using an alias because the former accused drug trafficker, now aged 23, wants to move on with her life.

Back in 2018, hours before her flight, her new boss had given her a padlocked bag in the Cambodian capital of Phnom Penh. She says the middle-aged Nigerian man, who she knew only as Peter, claimed it was "just clothes" and promised to pay her $1,000 if she took it to Hong Kong.

But she never saw Peter again. The crystals turned out to be 2kg of methamphetamine, worth $140,000 when the haul was seized.