Inclusion Criteria:  Having suicidal ideation measured as a score > 2 on Beck scale of suicidal ideation Aged 18 years - 60 years' old Police officer with psychological trauma measured with the International Trauma Questionnaire and stress measured with stress subscale of Depression, Anxiety and Stress scale  Exclusion Criteria:  Less than 12 months' experience in the police officer. Participants reporting active suicidal ideation measured as a score of 2 on item no 4 of BSSI will be excluded and referred to a psychiatric service. With current history of use of hard/psychoactive substances (excluding tobacco and caffeine). Unable to provide consent due to severe mental or physical illness. Unlikely to be available for the entire duration of the study.