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

Article 30 of the public elections regulations, 2012 C.I 75 provides that the presiding officer may before delivering a ballot paper to a person who is to vote at the election, require the person to produce a voter identification card or any other evidence determined by the commission in order to establish by finger print or facial recognition that the person is the registered voter whose name and voter identification number and particulars appear in the register http://aceproject.org/ero-en/regions/africa/GH/ghana-public-elections-regulations-2012-c.i.-75/view

Page 21 of the Common Wealth Secretariat Ghana 2012 Presidential and parliamentary election observation report, documents that the Electoral Commission of Ghana procured about 40,000 Biometric Verification Devices to ensure that the machine is available for more than 26,000 polling stations. The Biometric Verification Machine uses photographic image and finger print at the polling station elections. http://secretariat.thecommonwealth.org/document/190591/191180/176283/177819/253196/2012_ghana_elections_final_report.htm