Police may underuse Section 136.

A one-year prospective study comparing Section 136 patients (39) and the severe Section 2 or 4 patients (29) of the Mental Health Act 1983 in a hospital with inner London catchment areas. The assessments were clinical, nurses' ratings and socio-demographic. The results showed that clinical and nursing ratings did not differentiate the two groups. Most social/demographic data showed similar trends with both groups being disadvantaged but Section 136 patients slightly more so. The differences were smaller than anticipated, suggesting a recent shift of patients admitted under Section 2 or 4 towards a more socially disadvantaged position. In conclusion, police did not overuse Section 136. Our comparison suggests: (a) police may underuse Section 136, and (b) Section 136 acts as a valuable 'back-up' for those patients who would otherwise fail to benefit from the Mental Health Act.