It makes sense as an interrogation tactic, at any rate. If you’re going for a confession and the person is distraught (either by what they did or by getting caught doing what they did) then it’s a variation on “confess now or you’ll get a worse sentence” with the added bonus that the timeline on the “confess” is both out of the interrogator’s hands and it doesn’t seem artifiical to the suspect.
It makes sense as an interrogation tactic, at any rate. If you’re going for a confession and the person is distraught (either by what they did or by getting caught doing what they did) then it’s a variation on “confess now or you’ll get a worse sentence” with the added bonus that the timeline on the “confess” is both out of the interrogator’s hands and it doesn’t seem artifiical to the suspect.