On the night of 9 to 10 November, patrol officers stopped a Skoda Octavia for a road check on ul. Bolesława Chrobrego in Szamotuły.[1] The 48-year-old driver gave officers false personal details and only admitted it after they found his identity card with his photograph in the car.[1] He was fined for misleading officers about his identity.[1] A check showed he held an active court ban on driving and should not have been behind the wheel.[1]

Officers found prohibited substances in the car attributed in preliminary findings to the 48-year-old and his 28-year-old female passenger.[1] Police secured marijuana and more than 90 grams of mephedrone.[1] Radio Poznań reported that marijuana and more than 90 grams of mephedrone were found during the car check.[2]

After evidence was secured, both people were questioned; the man was charged with driving despite the ban and drug possession, and the woman with drug possession.[3] Two people were detained and charged over drug possession.[4] Officers took blood from the driver to check whether he had been under the influence of drugs, with results pending.[1]