If e-voting is currently being used, is it taking place in controlled or uncontrolled environment?

Namibia, ECN, Regulations relating to Use of Voting Machines at Elections, accessed 3 December 2019

Namibia, ECN, Election Information 2019, accessed 3 December 2019

“The Electronic Voting Machine (EVM) will be used during the Presidential and National Assembly Elections. The EVM is easy to use since the voter is required to press only two buttons: the green button that corresponds to the party or candidate of his/her choice and the red button to confirm that choice.”