For more about China’s anti-corruption efforts, I’m joined here in the studio by my colleague Hou Na.

Q1. Hou Na, you’ve done many reports on China’s anti-corruption campaign. Tell us more about the recent efforts.

Hou Na: China stands firm on its anti-corruption promises, no matter where the wrongdoers flee. In a recent case, the fugitive Yang Xiuzhu who fled the country 13 years ago, surrendered to authorities in Beijing on November 16th. It marks another victory in the country's campaign against corruption. The former deputy director of the construction department of east China's Zhejiang province is accused of embezzling 250 million yuan or 36-point-3 million US dollars. She was the most-wanted person on China's "red notice" list of 100 corrupt officials released by Interpol last year.

She is the 37th fugitive to have recently returned to the country. Most of them were persuaded to do so. To hold them criminally accountable, China has the right to use repatriation and extradition rules in accordance with bilateral treaties and the United Nations Convention Against Corruption.

What prompted Yang to end her days on the run was not that the Chinese government had been "pressuring her family". After being charged by authorities in the US and detained there thanks to close law enforcement cooperation, she had no option but to return and confess to her crime.

Beijing's hunt for corrupt fugitives is justifiable and in line with its efforts to safeguard national interests and promote fair market competition.

Q2. The central leadership's frugality campaign, which was launched in December 2012, features the "eight-point rules." They aim to curb extravagance. Tell us what's been achieved since the campaign began four years ago.

Hou Na : Four years on, the campaign has never showed signs of fading. Authorities are striving to maintain close ties with the people and eliminate both "tigers" or corrupt senior officials, and "flies" or corrupt lower-level officials.

According to the CPC's anti-graft agency, nearly 200-thousand former party and government staff have been punished for violating rules in the past four years. Many of them held senior positions.

These people were involved in more than 146-thousand cases. The CPC Central Commission for Discipline Inspection says about a quarter of the cases involved the use of public vehicles and dining out on public funds.

Chinese President Xi Jinping discussed the fight against corruption in his opening and closing speeches at the G20 Summit in Hangzhou in September, underscoring the importance of the issue.

On the last day of the summit, Xi said the leaders of the world's 20 largest economies agreed to promote policies to prevent corruption in the public sector.

Xi proposed that member countries cooperate in the capture and repatriation of former officials that flee justice by taking refuge in other countries, as well as in the recovery of stolen funds.