Group 1 - The core viewpoint of the articles highlights the efforts of Xi'an's disciplinary inspection and supervision authorities to enhance the quality of case handling through various measures, including the appointment of internal control officers and the establishment of standardized evidence guidelines [1][2][3][4] Group 2 - Xi'an's disciplinary inspection commission has appointed multiple business backbones as "internal control officers" to conduct preliminary reviews of over 180 cases from April to December 2025, providing more than 400 suggestions for modifications [1] - The commission has developed documents such as the "Evidence Guidelines for Corruption Cases" and the "Case Review Standard Volume" to standardize evidence criteria and streamline case handling processes [2] - Since 2025, a total of 2,714 cases have been reviewed across various districts and institutions, with the evaluation process extending from case initiation to closure, ensuring comprehensive quality checks [3] - Feedback meetings are held promptly after quality evaluations to enforce accountability for rectifying identified issues, with specific timelines set for addressing problems such as unclear facts and non-compliant documentation [4]