Pakistan's electoral commission has said biometric polling trials will continue ahead of a general election despite the low identification rate achieved in its first pilot.The decision has been taken following a pilot project in NA-19 Haripur, where biometric machines were deployed at 30 polling stations.Although just 44% of voters could be identified, the ECP has said more trials are necessary, because just one or two tests are not sufficient basis on which to formulate a national policy.In a detailed report on the trial, the body noted that the biometric machines could not be used in five of the 30 polling stations selected.It adds that some polling staff did not apply due diligence, and that identification wasn't always possible against National Database and Registration Authority records.The National Database and Registration Authority (Nadra) and the Pakistan Telecommunication Authority have stated that their systems and infrastructure were not designed for electoral activity.