(1) Whoever, in accordance with his or her understanding of the act, takes a direct step towards the realisation of the factual elements of the offence, is deemed to have attempted a regulatory offence.
(2) The attempt may be sanctioned only if expressly provided by law.
(3) If the perpetrator voluntarily renounces further execution of the act, or prevents its completion, he or she is not sanctioned for an attempt. If the act will not be completed without the contribution of the abandoning party, his or her voluntary and earnest efforts to prevent its completion are sufficient.
(4) If more than one person participates in the act, the person who voluntarily prevents its completion is not sanctioned for an attempt. His or her voluntary and earnest efforts to prevent the completion of the act are however sufficient if the act is not completed without his or her contribution, or is committed independently of his or her earlier participation.