Item response theory analyses were used to examine one section of the LS\CMI.

The majority of LS\CMI items shows limited discriminant power (recidivists vs. non-recidivists).

Items presenting the most desirable psychometric properties relate to a person's criminal history.

The findings show that the LS\CMI does not perform equally well with inmates and probationers.

The findings raise concerns over the use of the instrument across jurisdictions and settings.