A poll found that more than 55% oppose a bill to revise the Criminal Procedure Act that includes abolishing prosecutors' supplementary investigation authority, which the Democratic Party of Korea is pursuing. In the same survey, President Lee Jae-myung's positive job approval fell by 5.9 percentage points from the previous survey (the second week of Jul.).
In a survey of 1,000 people nationwide aged 18 or older conducted on the 20th–21st by the Korea Society Opinion Institute (KSOI), opposition to abolishing the supplementary investigation authority was 55.3%. Support was 27.4%, a gap of 27.9 percentage points. "Don't know" was 17.3%.
Opposition rose 7.6 percentage points from the previous survey (47.7%) conducted in the fourth week of Jun. In contrast, support fell 3.9 percentage points from before (31.3%). Analysts said public sentiment opposing the complete abolition of prosecutors' supplementary investigation authority has strengthened.
By age, opposition outpaced support across all generations. However, among people in their 40s (support 41.5%, opposition 45.7%) and 50s (support 39.8%, opposition 45.7%), the support–opposition gap was smaller than in other age groups. By region, opposition was recorded in Seoul (61.8%) and Busan–Ulsan–South Gyeongsang (63.3%), while Gwangju–North and South Jeolla (support 49.3%, opposition 34.0%) was the only area where support held an advantage.
Evaluation of the president's job performance came to 48.8% positive and 46.7% negative. Compared with the previous survey (the second week of Jul.), the positive rating fell 5.9 percentage points, while the negative rating rose 5.8 percentage points. Party support stood at the Democratic Party of Korea 42.9%, People Power Party 30.6%, Reform Party 3.3%, Rebuilding Korea Party 1.9%, and The Progressive Party 1.2%.
In the poll on who is best suited to lead the Democratic Party, former leader Jung Chung-rae recorded 25.7%. Former Prime Minister Kim Min-seok followed with 21.5%, and former leader Song Young-gil with 8.3%. Lawmaker Ko Min-jung was at 3.9%, and former Gangjin County Council chair Kim Bomi was at 2.6%.
The survey was conducted using an automated response (ARS) method with wireless virtual numbers provided by the three telecom operators. The margin of error is ±3.1 percentage points at a 95% confidence level. The response rate is 5.4%. For details, refer to the website of the National Election Survey Deliberation Commission.