This is the second confirmed case of parasite smuggling discovered in Japan, after cocaine was also found at Mikawa Port in Aichi Prefecture in August 2019. The office and others questioned the ship's crew. They do not believe the ship's owner or the about 20 crew members were involved in the smuggling. All crew members were identified using their passports, and no suspicious activities involving the ship's owner have been confirmed. Therefore, the office has determined that the case constitutes parasite smuggling. The cargo ship has already departed Shimizu Port. The office is continuing its investigation into the case under the Narcotics and Psychotropics Control Law, while the Nagoya Customs Shimizu Office is investigating it under the Customs Law.