Wales are not unique in this respectand epidemiological studies show that suicide rates in the prison population are greater than that of the general population . In European countries, the prison suicide rate is approximately 7 times higher than in the community. (World Health Organisation, 2014). Prison suicide rates in North America are also increasing. Government data shows that selfinflicted deaths increased 9% between 2012 and 2013 and account for over a third of deaths in correctional institutes (Noonan & Ginder, 2013). Although self-inflicted deaths in Australian prisons have decreased in recent years, they are still higher than those at liberty (Willis et al. 2016) as are suicides inCanadian institutes (Sapers, 2011).Self-harming, or self-injurious behaviours (SIB) also present a challenge for prisons. Case-control data demonstrate the self-harm rate in English and Welsh prisoners are 5-6% in males and 20-24% of females respectively (Hawton et al., 2014). These behaviours can occur for a number of reasons including; as an attempt to influence the environment, emotional regulation, or as a response to the symptoms of mental illness (Jeglic, Vanderhoff & Donovick, 2005). . They have however been identified as a risk factor for suicide in prison; albeit with a comparatively low absolute risk (Hawton et al, 2014). Whilst suicide risk is regarded as generally heightened during the early stages of custody (Crighton, 2006; Dahle, Lohner & Norbert, 2005) previous self-harm canbe predictive of suicidal ideation for new prisoners (Slade & Edelmann, 2014) In England and Wales, recent priorities outlined in agreements made between the National Offender Management Service (NOMS), Public Health England, and NHS England (2015) indicate a commitment to further improving the approach to managing prisoners at risk of both self-harm and suicide 1 In this paper the term 'prison estate' refers to all institutes used to incarcerate both remand and sentenced offenders.2 ), Given that early identification of suicidal prisoners is considered important to reduce deaths (Blaauw et al, 2001) the use of risk screening tools seems an obvious consideration. However, to date, this approach has proved controversial and met with, at best, limited success (Perry & Olason, 2009 to the attention of mental health professionals after an overt gesture has been made to self-injure (Blasko, Jeglic & Malkin, 2008). Suicide screening tools may be inappropriate for use in settings other than those which they were designed for but have nonetheless been implemented prior to any additional validation (Boudreaux & Horowitz, 2014;Perry et al, 2010). Likewise, In England and Wales a healthcare reception screening tool for use in primary care in both male and female prisons was developed, yet figures for 3 sensitivity and specificity rates pertaining to suicide risk were unavailable (Grubin, Carson & Parsons, 2002). An evaluation study found many institutions to be using an untested but modified version of the tool (Shaw et al, 2008
Suicide Te...