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

Trinidad and Tobago, Elections and Boundaries Commission, Representation of the People Act (Act 41 of 1967, last amended in 2000): Election Rules, accessed 9 August 2020

40. (1) When a person hands his poll card and identification card, if any, to the Presiding Officer or his nominee, the Presiding Officer or his nominee shall compare—

(a) any signature on the poll card with that of the elector on his identification card; and

(b) any photograph on the identification card with the face of the person.