Not that predicting where crimes will occur is really a thing - more likely you are just predicting where a population is getting policed.
Deterrence and deescalation are where predictive policing could theoretically be useful but in practice it is often just bias laundering or reinforcing their tautologies. Looking at the "wrong side of the tracks" more and the arrest rates will climb there even if crime is actually lower there - let alone confounding variables. Like say the police being called in domestic disputes by witnesses in thin walled apartments and trailer parks but not in large fenced estates even if they are just as loud and violent because they weren't literally heard.