As mentioned above in the chapter on procedural questions, procedural safeguards for election disputes gain particular importance when it comes to decisions on cancellation of election results. The law must guarantee safeguards such as impartiality, precise norms to limit the discretion of the authority, guarantees of a fair, objective and reasoned decision, in order to prevent arbitrary decisions and to be in accordance with the ECHR. Proving violations of the law by campaigning online and via social media is particularly challenging. Well-reasoned, transparent decisions on such matters are crucial. In the opinion of the Venice Commission, such decisions should precisely indicate the violations and the evidence, and they must not be based solely on classified intelligence (which may only be used as contextual information), as this would not guarantee the necessary transparency and verifiability.