Europe’s prison population is unwaveringly increasing with a total of roughly 1.6 million persons presently incarcerated (Highest to Lowest – Prison Population Total. (n.d.). Retrieved January 28, 2018, from http://www.prisonstudies.org). Mental health issues, such as depression, anxiety, substance addiction and personality disorders have affected up to 40% of prisoners in Europe (WHO, 2018). Such issues have been shown to be linked to suicidal thoughts, as about 90% of people who have attempted or completed suicide had at least one mental health condition (NHS, 2015). Prisoners make up a high-risk group for suicide, which can be clearly seen when comparing the prison’s suicide rates to that of the general population. (Lazel, Ramesh, Hawton (2017). Suicide in prisons: an international study of prevalence and contributory factors. The Lancet Psychiatry, 4(12), 946-952. Retrieved from thelancet.com) (WHO, 2017). In countries such as England, the prison suicide rates have reached the highest level since 1999 (how to cite this?).In France it was even reported that it’s prison suicide rate was double that of the European average in 2010 (COE, 2013). Hence, suicide prevention in prisons becomes increasingly of an important Public Health issue, as the prison suicide rates are going up, it causes death in the individuals who are suffering from suicidal thoughts and the WHO has discussed the possible improvements prisons could implement in terms of suicide prevention (WHO, 2007). The environment of a correctional facility can impact the development of suicidal ideations (WHO, 2007). This paper aims to analyse the risk factors for suicidal thoughts that may lead to suicide and the preventive measures put in place to avoid such things, complemented with the following research questions:Which factors are significant for the development of suicidal thoughts and ideations?What preventative measures are effective in hindering these developments?