"The EC is a legal institution that follow procedures according to the law.
"Whatever issues arise in regards to the elections should be discussed in the floors of parliament and state assemblies," said Wan Ahmad.
However, he said that EC is willing to listen to feedback from the tribunal.
"The EC welcomes feedback from the tribunal and also from the people, and will study it in order to improve the country's electoral system," he said.
The people's tribunal on GE13 was organised by Bersih following the public outcry and concerns on the fairness of the outcome of the election process.
The tribunal will end on Sept 22.
During the tribunal, Klang MP Charles Santiago claimed electoral irregularities were designed to benefit the ruling government.
Electoral reform NGO Tindak Malaysia also criticised the government for awarding armed forces and journalists with advance postal votes rights during GE13.
Wan Ahmad said that EC is fully aware of all these issues.
"We have conducted thorough reviews on this. Last week, we assigned a special group to analyse all the electoral problems during GE13," he said.
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