Security Cameras on Common Property QLD

I own an apartment in a building in QLD with 6 units in total.
I've been advised that 2 of the lot owners have recently installed security cameras on the eaves of the building (the eaves above their balconies ie. common property) One points towards the road and one points towards the driveway of the building and street beyond.
The BC Committee was not consulted prior to the installations - By Laws state owners cannot install any permanent fixtures, drive nails or screws into any area of Common Property without approval of the Committee first, so Body Corp has asked the lot owners to remove them.
I'm wanting to know, can the Lot owners, committee or body corp manager be liable for breaches of the Surveillance Devices Act (or any other legal action) that arises from having these cameras installed without approval?
Should the Committee seek independent legal advice regarding installation of security cameras on the premises IF they decide they want them?
Who should control and store the footage?
Are there any other issues the Committee should consider?
Currently no one has access to the footage apart from the lot owners that installed the cameras.

 

SDA is NSW law.

The relevant law is QLD Invasion of Privacy Act 1971. It doesnt prescribe video recording as a invasion of privacy and this is consistent with common law unless s227A of the Criminal Code is involved. These days wifi cameras can be easily affixed using non permanent fixing in an inaccessable area

Q : Is there a nuisance ?? Camera surveillance, video, and audio recording – a community guide

 

@Terry_w

This was interesting in the link from @Paul@PFI

In Western Australia, it is illegal to record a private conversation without the consent of all parties involved

Had a google and

https://www.who.com.au/is-it-legal-to-record-a-phone-call-in-australia

 

Its probably illegal in all states to record private conversions - not sure if consent is needed or just informing the the party.

 

Lawyer once told me - record the conversation, convert to written record then delete the verbal recording.

Verbal recording can’t be used, written one can.

 

I guess this raises another question, do the cameras have the ability to record sound.

Thanks for the responses so far.
The owners that are against the cameras are are worried the footage isn't going to be stored correctly or not be able to be accessed by everyone. That and the fact that they're installed on common property without prior consent of the committee.
The owners that are opposed to the cameras are the ones that don't live in the building..
I never knew such a small building could have so much drama

 

Recording sound isnt a concern. Recording private conversations may be if the use of the recording was a breach. I would argue that the video in question would not be used and not even reviewed until a event requiring police assistance was involved. Then you have a lawful use of the sound. Every time you buy fuel, walk into a bank, drive on a highway etc and even many intersections and street and private property can incidentally or deliberately record you. And how so many crimes are solved now.

This one can be attached to a mobile phone charger battery and record video on motion incl infrared. And nobody would know. Hides anywhere. We used it to nick an alleged vandal around our work. A malicious former contractor. Cops gave him astern talking to and its never happened since. Hmmmm (He knew where all the fixed camera were).

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So many people think its illegal to record or photo someone or something - its not.

 

Ok so if in a public space no issues recording sound if it happens to catch a private conversation it would be unreasonable to expect that no one would hear in a public space?
I believe you're correct that the footage wouldn't be used UNLESS an incident happens, I'm personally not worried about it as the cameras point onto common property and public property (street and footpath) and I would be surprised if they could actually record a conversation from the street as they're high up on the eaves of the building.
Some owners are dead against them though and giving these seemingly far fetched reasons not to have them.