The Indonesian police commander who led the Schapelle Corby investigation says she was treated like any other suspect and her case is nothing more than an ordinary criminal matter.
  
Despite a wave of controversy and anger in Australia, Bali drug squad chief Colonel Bambang Sugiarto said he and his officers simply went about their "ordinary duties" when they compiled the evidence that resulted in Corby's conviction and 20 year prison sentence.
  
He described the investigation as standard police work.
  
"We just want to treat everyone equally, whether they are Australian, Indonesian or whatever," Sugiarto said.
  
Corby's defence lawyers - who criticised the performance of the police - are expected to appeal her sentence and seek to have her freed from Bali's Kerobokan prison.
  
Indonesian prosecutors, meanwhile, are also challenging her sentence, saying it is too lenient. They, with the backing of Indonesia's attorney-general, want her jailed for life as a deterrent to would-be drug traffickers.
  
Sugiarto declined to give an opinion about the penalty handed down in the Denpasar District Court on Friday by a three-judge panel, who found Corby guilty of trying to smuggle 4.1kg of marijuana when she flew into Denpasar Airport on October 8 last
year.
  
"If the elements of a crime are proven, then she should be punished," he said. "It was our job only to investigate her as a suspect. The prosecutors made her a defendant and the judges made her a convict."
  
Sugiarto seemed ambivalent about the outcome of the case, saying he didn't regard her conviction as a major success for his squad.  He also wasn't taking any particularly joy from her incarceration.
  
During the trial, Corby's lawyers castigated Indonesian police and customs officers for not fingerprinting or trying to determine, through analysis, the origin of the drugs found in her boogie board bag.
  
They also criticised authorities for not videotaping the moments after she was stopped and questioned at the airport's customs counter.
  
In testimony, Corby denied evidence given by officers that she had tried to stop one from unzipping her bag or admitting to another that the marijuana was hers.
  
At the very end of the trial process two weeks ago, the defence raised in court comments made earlier by Sugiarto in an Indonesian television interview in which he pointed to shortcomings in the investigation.
  
However, because of its late timing these defence concerns were not accepted by the judges as formal evidence.
  
Later, Sugiarto insisted that the police case against Corby had been solid enough to justify her being prosecuted.

It is not clear whether Sugiarto's misgivings in the TV interview will be included in the defence appeal.