Objectives:
The aim of the study is to investigate the views of adolescents aged 16–19, attending public high schools in Warsaw, on effectiveness of suicide prevention.

Methods:
The studied population covered adolescents aged 16–19 back in 2015 (M = 17.29; SD = 0.94). The respondents attended eight public high schools in Warsaw in eight different districts. The study group was representative. 1,439 respondents participated in the study – 821 girls (57.1%) and 592 boys (41.1%). PAPI method was used in the conducted study. The questionnaire consisted of 34 questions.

Results:
In most cases respondents did not know whether there was an organized system of suicide prevention in Poland (42.0%), however, a large proportion of the respondents (39.7%) was aware of nonexistence of such a system in Poland. The respondents considered the activity of a school (46.7%), the Church (38.3%) and the police (55.9%) in the field of suicide prevention ineffective, the activity of health care institutions (47.7%) and the media (46.6%) hardly effective, while the family was considered effective (70.9%). Persons who perceive significant role of the Church in suicide prevention at the same time indicate considerable share of the family and a much lesser role of the remaining institutions.

Conclusions:
1) More than . of studied adolescents realize that there is no integrated system of suicide prevention; 2) The family, according to high school students, plays the greatest role in preventing self-destructive behaviors; 3) There is a need of greater involvement of schools, the Church, the police, health care institutions and the media in education and raising adolescents’ awareness in the field of self-destructive behaviors.`