As the forensic experts examined the device - at the same time the All Blacks took to Sydney's ANZ Stadium - police were also investigating why it took several days for New Zealand Rugby to come forward after they found the device.
Police have also appealed for any information about who was responsible for the planting of the bug.
Under Australian federal law it is an offence to knowingly use a listening device to record a private conversation.
NZR chief executive Steve Tew said the Australian Rugby Union had been informed and the investigation had been handed over to Australian police.
"There was an All Blacks team meeting there earlier in the week," Tew said.
"If the device was working properly, and we don't know that for sure, then they would have overheard that."
ARU boss Bill Pulver categorically denied the Australian union had any involvement in the bugging of the All Blacks.
"It is completely ludicrous. I just think it's a ludicrous concept that there are listening devices being placed in team rooms. I don't know how that could happen.
"I'm utterly disappointed the story would break on match day and frankly, that's all I've got to say," Pulver said.
"I simply don't know the background but I'm clearly disappointed it gets out to the media on the day of a Bledisloe Cup match."
The Herald on Sunday has been told hiding the device was a highly skilled and meticulous act and whoever put it there would have needed a significant amount of time to have pulled off such an accomplished job.
If the device was working properly, and we don't know that for sure, then they would have overheard that.
Wherever the All Blacks stay, they are allocated a room where the players can gather and where private meetings about strategy, tactics and selection can take place.
This room is always clearly marked as private, is usually roped off or inaccessible to anyone other than players and management and sometimes has security personnel monitoring the entrance.
If the device was planted with the intention of listening into the All Blacks, then whoever was trying to do that would also have needed to have known which room to place the chair and have been able to get it in there undetected.
The All Blacks - coached by Steven Hansen, a former police officer - have been aware over the years of various attempts to spy on them while they have been training.
As the scandal broke, former Wallaby and World Cup winner Matt Burke told Veitch on Sport the revelations were a "turning point in what we thought was a pure game".
Although people would need to wait for the outcome of the police investigation, he hoped Australian rugby authorities were not involved.
