The quickness with which the Department of Vigilance and Anti Corruption (DVAC) under DMK rule filed charge sheet against her raised several questions about fair and unbiased investigation, L Nageswar Rao, counsel of the former Tamil Nadu Chief Minister, told the court.
"Normally, after the filing of FIR it takes three to four years to file charge sheet of a crime of such proportion as this but the DVAC did it in just nine months. This raises questions about fair and unbiased investigation into the case," Rao said.
The bench has been set up at the direction of the Supreme Court on December 18 to decide the appeals in three months.
Rao also submitted that the then DMK government had appointed and deployed 150 police personnel to investigate the case in an "unprecedented" move.
He also submitted that N Nallamma Naidu was reappointed as the Investigating Officer in 2006 when DMK returned to power, raising suspicion that the then government had political intentions to implicate Jayalalithaa.