The Data Protection Commissioner is engaging with Sinn Féin on the issue.
The Abú voter system has been at the centre of controversy over concerns about data breaches, particularly concerns about how the party has been finding out who supports them.
The Data Protection Commissioner is engaging with Sinn Féin on the issue.
The party's Housing Spokesperson, Eoin Ó Broin, says they want to use it in the by-election.

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