The joint investigative team of the Seoul Eastern District Prosecutor's Office announced on the 26th that it found no substance to various allegations raised by Chief Inspector Baek Hae-ryong regarding the involvement of customs officers and police in drug smuggling. During a previous interim report released in December, no charges were filed against customs employees or police officials. Furthermore, the investigation has cleared Han Dong-hoon, the former Minister of Justice, who was implicated in suspicions of suppressing the investigation. This outcome raises eyebrows as a staggering amount of 121.5 kilograms of drugs—enough for 4.05 million doses—was smuggled into the country in 15 separate instances by organized criminals, yet no public officials have been held accountable. The lingering doubts regarding the possible organized involvement of entities such as President Yoon Seok-yeol's office, police, and customs remain insufficiently addressed, leaving the public unconvinced.

The task force concluded that the allegations of customs drug smuggling were based on false testimonies from drug traffickers, asserting that there was no external pressure from high-ranking officials within the police or customs. They described the investigation as flawed, stating that investigators deviated from proper procedures and relied excessively on the drug traffickers' misleading statements, which led to unwarranted public suspicion and chaos. The postponement of police briefings and modifications to press releases were determined to be legal due to the ongoing investigation and established reporting protocols, as officials planned to raid Incheon International Airport's customs on the same day as the briefing.

However, significant concerns persist regarding the pressure purportedly exerted by the manager of the Yeongdeungpo Police Station at the time, who was said to have interfered with the investigation and later received a promotion to a position at the President's office. Additionally, ongoing allegations of investigative interference by the then head of safety at the Seoul Metropolitan Police Agency, Jo Byung-no, have not been resolved. Jo is reportedly connected to Lee Jong-ho, a key figure in a stock manipulation case involving Kim Gun-hee, leading to further concerns about favoritism. Despite assertions from the joint task force that they employed thorough investigative techniques, including searches and mobile forensics, skepticism remains regarding their decision to prioritize the explanations provided by the implicated parties.