Abstract
This study examined trends and influences of variables in the 100 most recent applications of Section 5(2) of the Mental Health Act 1983 in a major teaching hospital in England. Case notes, section-forms, log-books and computerised records were scrutinised. Sixty-four per cent of the cases were converted to Section 2(28%) or Section 3(36%), the remainder were rescinded or lapsed. No demographic, illness characteristic or grade of doctor significantly effected conversion or lapse rate of Section 5(2). The clinical implications of a high rate of non-conversion of Section 5(2) is clear. Non-psychotic patients may be less likely to be regarded for further Sections when detained under Section 5(4) before detention under Section 5(2), yet no single factor determines the outcome of emergency detention.