These include about 640 candidates out of 1.7million that did not do biometric verification.
According to him, some of these hitches were caused by some CBT owners and cyber cafe operators.
He said the candidates will be made to write the examination under his own very eyes.
Highlighting some of the cases of malpractice encountered during the examination, the JAMB boss mentioned cases hereby parents pay heavily to buy fake questions for their children, CBT Owners deliberately shutting down or disconnecting the network to be able to access questions on the computers and exploit candidates and also cases where CBT centres approach our staff promising N500,000 for them to give out questions.
He mentioned that in subsequent exams, the board will introduce electronic jammers to further reduce cases of malpractice.
He finally advised candidates to forward all complaints to designated JAMB CBT centres.