The keyword is " Justifiable" and "Reasonable" & "Lawful interests" -- and largely depends on the context of conversation eg employer forcing you to do something illegal, your
boss looking for sexual favours from you etc..... conversations like discussing payrise , or work amenities is not a good justification ..
Now you've opened a can of worms - but in a really good way, because this all comes down to how you interpret the law in general. Quite frankly, I don't believe that we see anywhere near enough discussion on that subject.
If you read your statement a few times (I was scratching my head after the first read), you can see what the can of worms is about. Some people will look at that and say "yep - I can see how you would have cause in those situations", while others will look at it and say "well hang on, you don't have cause until an incident happens." And that's the catch - in fact there's two of them, and that's without even getting into the "context of the conversation!"
1. When exactly do you have "cause" in a timeline that looks like "nothing happening, nothing happening, incident, nothing happening..."; and
2. Is it even possible to justify cause for periods of "nothing happening".
I hope you don't mind, because this will be pretty long winded, but I think it's well worth getting into - particularly given your circumstances. It's a really interesting issue.
Criminal offences are usually defined in legislation as provisions that are "prohibitive" with "permissive exclusions" or sometimes, "permissive" with "prohibitive exclusions".
In the first case,
the offence is defined up front followed by exclusions that define a set of circumstances that do not constitute an offence.
In the second case, permitted conduct is defined up front followed by exclusions that define
a set of circumstances that do constitute an offence.
What's the difference? Well it's MASSIVE if you get charged and the matter proceeds to trial - because the difference is all about "burden of proof".
So here we go - this is how I interpret the NSW Surveillance Devices Act ...
First up, what type of legislation is it and what is it's purpose? This answer will nearly alway be in the "Long Title" of the Act, which in this case is:
"An Act to regulate the installation, use, maintenance and retrieval of surveillance devices; to repeal the Listening Devices Act 1984; and for other purposes."
The Act is therefore a "regulatory" type of legislation which usually either applies to a specific group of people or industry, or sometimes to everyone - as it does in this case.
The next thing to detimine is if it is dominantly "prohibitive" or "permissive" in nature. In this case it is dominantly "prohibitive" (offences up front followed by exclusions). This tells us what to do if there is any ambiguity - which is to lean towards prohibition (and seek legal advice if we're unsure if an exclusion applies).
Example 1.
What I call "prohibitive legislation" looks something like this:
1. Use of listening devices
1. A person
must not record a private conversation:
a) in circumstance one; or
b) in circumstance two.
2. Subsection (1)
does not apply if circumstance three.
3. A person
may record a private conversation if:
a) circumstance four; or
b) circumstance five.
So you have (1) = "prohibitive" (the offence); and (2) and (3) = "permissive exceptions".
Example 2.
If this was "permissive legislation", then it may look something like this:
1. Use of listening devices
1. A person
may record a private conversation:
a) in circumstance one; or
b) in circumstance two.
2. Subsection (1)
does not apply if circumstance three.
3. A person
must not record a private conversation if:
a) circumstance four; or
b) circumstance five.
It's the exact opposite; (1) = "permissive"; and (2) and (3) = "prohibitive exceptions" - the offence(s).
(With this type of legislation you would lean towards permission if there is any ambiguity.)
So how does this affect "burden of proof"?
Using example 1, let's say you are charged with an offence under 1(a) "circumstance one" and your defence is subsection 3(b) "circumstance five". Generally, what will occur is that the onus will fall to the prosecution to prove their case under 1(a) where the actual offence is. They therefore would need to prove that "circumstance one" existed, but they would not necessarily have to prove that "circumstance five" did not exist. In that case, the onus will fall to the accused to prove that "circumstance five" did exist in order to be acquitted.
With example 2, that all changes. This time we have a permissive clause at (1); with the offence(s) defined in exclusions at (2) and (3). So let's say that you are charged under 3(a) "circumstance four" and your defence is 1(b) "circumstance two". In this case, the prosecution has to prove that "circumstance four" existed - the "special circumstance" that constitutes an offence. As the accused, you would pretty much never have to prove "circumstance two" because it's a permissive provision.
So the way I see it, is that when it comes to "exclusions", whether the exclusion defines the offence or not, there will be a burden of proof on the party that relies on the exclusion to win their case - and while the prosecution has to prove the offence regardless, if the accused relies on an exclusion as a defence, then there will also be a burden of proof on the defence. So with prohibitive legislation, both sides have to put in the hard yards, but with permissive legislation, it's all pretty much on the prosecution.
I guess that's why most legislation is carefully worded to be prohibitive in nature.
This all brings us full circle, back to to your particular circumstances, and my concerns about recording audio. Under the Surveillance Devices Act, if you are charged under s7(1) (a "prohibitive provision"), and you use s7(3)(b)(ii) as a defence (a "permissive exclusion"), then the onus will likely fall to you to show that the making of the recording was justified. What you will now have to prove, is that you had cause to make the recording
at the time that you began recording, not at the time that any incident took place, which is after the fact.
That is where I see a potential problem and why I recommend that you seek professional legal advice. You have to be able to justify the recording up front, and I personally have no idea if
the possibility of an incident is sufficent to satisfy s7(3)(b)(ii) in that regard.
So I guess the question that we really need an answer to is
"From the perspective of a professional driver, does the possibility of a risk to the safety of the driver or his passengers, constitute a legal interest for the purpose of recording audio under s7(3)(b)(ii) of the NSW Surveillance Devices Act?"
Apologies for the really long post, but personally, I find this particular situation fascinating.
Comments, thoughts and particularly corrections are welcomed.
(I wouldn't learn otherwise).