The trial of Bo Xilai, charged with bribery, embezzlement and abuse of power, concluded on Monday at Jinan Intermediate People's Court, after hearings from Aug 22 to Aug 26.
The verdict will be announced at a date yet to be decided.
At the trial, prosecutors demanded a heavy sentence for Bo while the defendant denied the charges.
In his final statement, Bo said he made serious errors of judgement when handling the defection of Wang Lijun, former vice-mayor and police chief of Chongqing.
"Wang's defection caused vile impacts at home and abroad and undermined the image of the Party and country," he said. "I am deeply ashamed and filled with regret, but I did not intend to misuse my power."
He also denied the bribery and embezzlement charges against him. "The charges are not true. My mistake, which was serious, was that I did not discipline my family and subordinates.
"I know I am not a perfect person. I had a strong ego and bad temper. I made serious mistakes," he said. "I sincerely admit that my failure to manage my family had a negative effect on the country.
"I sincerely accept the investigation from the party and the judicial departments," he said.