Jim O'Callaghan is a stooge of big surveillance.
In his speech, O’Callaghan said there was “a need to grapple with the question of what data we will permit gardaí to access and what systems, protections and oversights should be in place”.
“None of us would like to imagine living in a surveillance state ... but neither, I think, would we like to imagine people who have taken, or plan to take, the lives of others continuing to walk free with impunity, as a result of an inability on the part of gardaí to effectively investigate their crimes.”
Seriously, though, if I was going to plan to murder him, I wouldn't set up a WhatsApp group to discuss my crimes. I'd just get on with it in private---no end-to-end encryption would be in sight, either before or after the fact.
(notice that there is no E2E encryption here; also notice that there is no mens rea, either)

