The investigation into the grenade launcher explosion at the KGP has been resumed. There are materials from Ukraine.

The investigation into the circumstances surrounding the transfer of a grenade launcher to former police chief Jarosław Szymczyk has resumed after nearly two years. Ukrainian authorities provided materials that were crucial for the Polish prosecution to continue the case. The investigation is examining whether the transfer of the grenade launchers was intentional or a mistake. Szymczyk is a victim in one investigation but faces charges in another related to the explosion of a grenade launcher in his office, which caused damage to three floors of the police headquarters. The explosion occurred shortly after he received the launchers during a visit to Ukraine, where he was assured they were used items.