Chapter 15 - Offences against the administration of justice
Section 1 - False statement in court
(1) If,
(1) a witness or an expert witness in court,
(2) a party to a matter in court, when heard under affirmation, or
(3) another person in court, under oath or affirmation,
makes a false statement in the matter or without lawful cause conceals a pertinent circumstance, that person shall be sentenced for a false statement in court to imprisonment for at most three years.
(2) What is provided above in subsection 1 applies also when a person is heard in the main hearing by video conference, telephone or another technical means of communication referred to in chapter 17, section 34a of the Code of Judicial Procedure, without he or she being present in person. (361/2003)
Section 2 - False statement in official proceedings
(1) If
(1) a person under oath or affirmation in official proceedings comparable to a trial,
(2) a person other than the suspect, when being questioned in person in criminal investigations, or
(3) a person other than one referred to in chapter 6, section 2, subsection 2 of the Police Act (872/2011) , when being questioned in a police inquiry or in comparable official proceedings, (815/2011)
makes a false statement in the matter or without lawful cause conceals a pertinent circumstance, said person shall be sentenced for a false statement in official proceedings to a fine or to imprisonment for at most two years.
Section 3 - Aggravated false statement in court
If, in a false statement referred to in section 1,
(1) serious danger arises of the court sentencing an innocent person to imprisonment or to another severe penalty, or a person to a significantly more severe penalty than what would otherwise be the case, or that the court is very likely otherwise to make a wrong decision causing very considerable damage to a party,
(2) the falsehood or the concealment pertains to an especially important circumstance, or
(3) the offence is committed in an especially methodical manner,
and the offence is aggravated also when assessed as a whole, the offender shall be sentenced for an aggravated false statement in court to imprisonment for at least four months and at most six years.
Section 4 - Negligent false statement
A person who
(1) as a witness or expert witness in court, or
(2) under a party’s affirmation, oath or affirmation in court or in official proceedings comparable to a trial,
negligently makes a false statement or conceals a pertinent circumstance, shall be sentenced for a negligent false statement to a fine or to imprisonment for at most six months.
EDIT.