Is the biometric data used in voter identification at polling stations?

Mission D’Observation Electorale De L’Union Europeenne Rapport Final, Republique Gabonese, Election Presidentielle, 27 aout 2016

The introduction of biometrics has emerged after the 2009 presidential election, following the finding by the Gabonese authorities of the existence of errors in the electoral roll close 120,000 duplicates. Early 2013, nearly six months after the contract award to the company Gemalto, a joint committee ad hoc, chaired by the Prime Minister has been established to propose modalities of implementation: the official biometric identification of Gabon (IBOGA).