[grier]

What was Slack's role in all of this?

They appear to have turned over historical images and chat logs, not just for the person indicted, but even others in the same channel.

Did the FBI ask nicely or was there actually some formal process?

[Nbadal]

Some of the conversation occurred on her Slack server, which as of an hour or two ago was still completely open/public via an invite linked shared on Meetup.

The entire server chat log is a few Google searches away.

[icelancer]

Right. It was an open Slack group. It's likely the Special Agent is the source of those logs and photos; no need for Slack to confirm anything except for metadata to authenticate the logs (if that's even necessary for yet another nail in the coffin).

[rcw4256]

The complaint doesn't make it clear what happened in this specific case, but Slack's general policy is here: https://slack.com/user-data-request-policy