Her long grey hair hanging down her back, Ding Yuxin wept in a Chinese courtroom last December. Following a one-day trial, she was sentenced to 20 years in prison for bribing government officials.
With only a primary school education, Ding Yuxin built an empire hinging on lucrative government coal and railway deals. Many were secured by greasing palms, netting Ding more than $325m (£207m: €290m) in contracts.
She's a particularly flashy example of a new kind of Chinese prisoner: a woman put behind bars for a non-violent crime. It's an unlikely symbol of how China is changing.
Overall, the number of women held in Chinese prisons is soaring, up 46% in the last decade. That is in contrast to a 10% rise in the number of male prisoners, says Dui Hua, a US-based prisoners rights organisation. Women comprise just 6.3% of China's prison population. If trends continue, within five years, China will imprison more women than the United States, home to the world's largest prison population.
A major reason is that China is undergoing transition. In the past few years, we've seen an increase in non-violent crimes involving women such as drug trafficking and telecommunication fraud.
China's anti-corruption campaign is having an effect on prison populations too. More women are also being convicted of taking bribes, because the number of women working in the Chinese government has also gone up. " In the past, a lot of women in prison were victims of domestic violence and had committed crimes in relation to that," Dr Cheng says. "But that figure has stabilised."