The Walewale Constituency executive of the National Democratic Congress (NDC) have officially lodged a complaint with the police to investigate the circumstances under which the running mate of the presidential candidate of the New Patriotic Party (NPP), Dr. Mahamudu Bawumia, invited two officials of the Electoral Commission (EC) to his residence at Walewale in the West Mamprusi District in the Northern Region for him to verify his name on the voters register.