A temporary Electoral Commission (EC) officer, identified as Gerti Justice, was arrested in Bimbilla during the Special Voting exercise after he allegedly took a picture of his ballot.
Party agents raised the issue, prompting his arrest by the police.
The National Democratic Congress (NDC) has called for the officer to face the law for the violation.
The parliamentary candidate for the Progressive People's Party (PPP) stated that the suspect admitted to the police, and it was agreed that his name would be removed from the list of EC officers for the day.