The functionalist tradition explains the first offence — why a person breaks a rule. This lesson is about what happens next: what the response does to the person it lands on, and how the reaction to deviance can become a cause of more of it.

It is the self-fulfilling prophecy (see 7.6.4) operating on a human identity, and it is one of the most powerful and most over-claimed ideas in the discipline. Getting the strength of the claim right — neither dismissing it nor inflating it — is the work of the lesson.

The apparatus of the theory

Does labelling actually make deviance worse? The evidence