China's former justice minister Fu Zhenghua, who spearheaded several corruption-fighting campaigns, has been jailed for bribery.
Fu pleaded guilty in July to accepting 117 million yuan ($14.7m; $16.5m) in gifts and money for personal gain.
On Thursday, a court in Changchun gave him a death sentence to be commuted to life in prison after two years.
His conviction comes amid a sudden crackdown on officials ahead of a key Communist Party congress next month.
China's ruling party holds the event once every five years and this time President Xi Jinping is expected to be given a historic third term and consolidate his hold on power.
Fu's jailing on Thursday follows the sentencing of three other former provincial police chiefs this week. All four men are not only accused of corruption but also of being disloyal to Mr Xi.
They are all alleged to have been part of a political circle led by another ex-security figurehead, Sun Lijun. Sun, who is currently awaiting his sentence, was said to have created his own political faction through helping elevate other officials in the security apparatus.
By Celia Hatton, Asia Pacific regional editor, BBC News
From a certain perspective, it should be no surprise that we're seeing dramatic courtroom announcements just ahead of a key political season in China. Xi Jinping is expected to stay in power, past his original 10-year term, and like any politician he's probably eager to shore up his power and popularity.
By taking down a perceived clique of officials who were apparently disloyal to him, Mr Xi is sending a clear warning to any other party members or business people who might be feeling less than enthusiastic about his continued reign.
China's state media is trumpeting the idea that all of the former senior officials sentenced this week were part of a gang that traded in sex, power and money. Their stories have appeared in documentaries like "Zero Tolerance", which features juicy details that might normally be found in a soap opera.
For a country that's exhausted by more than two years of strict "Zero Covid" protocols and the worst economic decline in decades, perhaps Xi Jinping and his colleagues think this will be a welcome distraction. However some might question why, 10 years on, the highest levels of the Chinese Communist Party are still grappling with shady officials.
Xi Jinping famously promised to take out both "tigers and flies", meaning corrupt cadres at all levels of the party. Surely, the public might ask, the "tigers" have already
Fu's case is among several that have been widely covered. He was China's justice minister from 2018 to 2020, after a career where he worked his way up from being a policeman to the deputy head of China's Ministry of Public Security.
He had led several high-profile investigations into corrupt politicians - including a probe which brought down Zhou Yongkang, one of the most powerful officials in recent years to be convicted of bribery.
But in October last year, the party's internal watchdog announced it was investigating Fu for "serious violations of discipline and national laws".
He was dismissed from public office and then in March this year expelled from the Communist Party. He was arrested a month later on the corruption charges.
Prosecutors said he took advantage of his authority to seek gains for others and himself on business contracts, official positions and even legal cases. He was accused of hiding evidence in a criminal case that involved his younger brother.
Sun, the alleged power broker of the group, was a vice minister of the Ministry of Public Security until 2020.