"I have Signal installed on my phone" seems a reasonable disclosure of a known potential trap.
If a police officer chooses to scan said phone with Cellebrite, it feels reasonable that you have discharged your knowledge to the extent possible.
No, that's a straightforward statement of fact which a software expert might realize implies there's a trap. A police officer could not reasonably be expected to know that.
A reasonable disclosure of a known potential trap is
"I have Signal installed on my phone, so if you use a Cellebrite device to pull my data your Cellebrite device might get hacked by Signal."
If you're using Signal at all, you probably care at least a little about security, so it's not a given, but probably the vast majority of Signal users wil never hear about this.
I wasn't trying to say you're automatically guilty if you don't warn the police about what Signal could do.
I was just trying to say that a statement that _implies_ a trap exists, if you know enough about a piece of software, it's not a reasonable warning that a trap exists.
If you know the trap exists, a case can be made that such an indirect statement is actually baiting the trap, rather than warning about it.