The Finnish police said they suspect MP Timo Vornanen of multiple crimes, Report informs via Yle.
The former Finns Party MP, who worked in law enforcement before becoming a politician, is suspected of firing a shot into the ground and pointing a gun at two people outside a Helsinki nightclub in April.
According to the police, he was intoxicated when firing the shot outside the bar. The weapon in question was licensed. No one was injured in the shooting, and the police have surveillance camera footage of the incident.
During a police interrogation, Vornanen admitted to bringing a gun to his office at Parliament on two occasions.
Investigators also seized two magazines and two gas pistols from Vornanen's house that lacked the required permits.
The case, which includes charges of endangerment, unlawful threat and a firearms offence, will now proceed to the prosecutors.
Vornanen formed a one-man parliamentary group after being expelled by the Finns Party in May.