Opening statements are scheduled to begin at 9 a.m. Wednesday in the federal corruption trial of former Oakland Mayor Sheng Thao, following the selection of a 12-person jury in the case. Thao is charged with bribery, conspiracy and fraud. Prosecutors allege she worked with California Waste Solutions owner David Duong and his son, Andy Duong, to help her win election and arrange payments for her longtime boyfriend, Andre Jones, in exchange for a city contract extension. All four defendants have pleaded not guilty. The case stems in part from a federal search of Thao’s Oakland residence more than two years ago. Agents collected evidence during the raid that prosecutors may present at trial. Jury selection concluded Tuesday with seven women and five men seated. Prosecutors questioned prospective jurors about negative experiences with law enforcement, while defense attorneys asked whether Thao’s recall from office could affect their ability to be impartial and whether they could assess each defendant’s case separately. Legal analyst Steven Clark said jury selection can be decisive for both sides. “If you don’t do a good job in jury selection as an attorney, you can lose your case before it starts,” he said. The proceedings will determine whether prosecutors can prove their allegations beyond a reasonable doubt. The defendants’ not-guilty pleas leave those claims to be tested in court.