If by coercive you mean physical pain, then yes, that's right.
But pain is a poor man's way to get intel (generally useless).
On the other hand, if you've ever seen a young college girl pop two ecstasy pills, some crystal meth, with some rave music playing lightly in the background, you already know that she **WON'T SHUT UP**. She'll tell you anything that you want to know (and then some).
And that's with civilian street drugs. NO2 (as any dentist will tell you) can make some people giddy enough to tell you anything, too.
Low level non-stop "suggestive" chatter played as a drowsy person attempts to sleep can do some interesting things, as well.
The Israelis have some clever intel "games" that they play to elicit certain info, too.
None of these things require pain. Anyone who tells you that pain is the answer to intel is clueless about modern field work.
And besides, it's prohibited (for good reason).
I had a girlfriend once, a long, long time ago who had a dating philosophy that "a guy won't tell the truth until he no longer wants sex." So she'd start off a relationship with so much sex (for days) that the *man* would finally tell her to knock it off. At that point, she'd begin to believe her boyfriend's answers to her questions.
The point being that our minds are set up in certain ways, but once a trigger threshold is reached our minds then behave differently. And without giving away the show, that's along the lines of how modern fieldwork elicits reliable intel from captured agents.
Not via pain; via thresholds/triggers. But again, no pain is involved. Not in the real world.