To be fair, some players seem to feel entitled to travel around an active warzone without being endangered in any way. Not even kidding, one of my first ED experiences when I'd just bought my first unengineered viper mk4 to take on a massacre mission was winging up with a friend in their FDL, and another player came into the zone, hadn't pledged to a side - we messaged them to say what side we were fighting on, no response, then my wingmate told them to pick a side or prepare to be fired upon. They didn't. They were fired upon.
Personally I'm of the opinion that if you're flying around a system where an active war is taking place, and you've fought in zones for one side or the other, or else have a significantly higher rep with one than the other, or belong to a squadron that is pledged to support one side or the other, the side that doesn't like you might consider you a target of opportunity even if you're not actively in a CZ right now. They're clearly not above that sort of behaviour, how many "venerable generals" have they asked you to whack for them, after all?
Yeah, the "entering CZ, not picking a side and tattletailing" was a frequently abused tactic, so it's normal CMDRs were highly allergic - out of natural survival interest - to it.
The action outside of a Conflict Zone is a simple criminal act outside of Anarchies. But if two sides agreed to open hostilities (Laws be damned), wouldn't be an issue.
Most of the time though - again, the old pattern - "Vultures" were lurking outside a CZ and hoping for heavily damaged/low Shields/low Ammo prey.
I agree the Assassination Mission branch holds criminal tasks, but those are transparent and optional.
Conflict Zone missions were never illegal thou, just plain Warzone Support Missions.
PS.
There even used to be Passenger Missions where VIPs demanded a visit into an active Conflict Zone. Haven't seen one of those in a long time but they existed.
But I take it an idle and hardpoints-retracted Dolphin, Orca or Beluga CMDR at that time wouldn't be regarded as a Threat in a Conflict Zone.
My personal bottom line in simplest terms just is : would be nice if we could one day retire the "if it flies - it dies" Archetype of Player interaction.
Back during my active duty days, Air Defense guys often had that motto lol ... so that may be a reason I'm by default not very fond of it
