Planned or Spontaneous? Learning Forensic Linguistic Identification Through the Stylistic Analysis of Indonesian Suicide Notes

Abstract

This study examines how linguistic features in Indonesian suicide notes reflect different degrees of suicide planning through forensic stylistic analysis. Using a descriptive qualitative forensic stylistic approach, twenty authenticated suicide notes published between 2020 and 2024 were collected from reputable Indonesian news outlets and analyzed across three stylistic dimensions: grammar, text structure, and punctuation. The findings reveal systematic distinctions between planned and spontaneous suicides. Planned suicide notes display coherent discourse organization, functional tense shifting toward future or posthumous reference, and controlled punctuation, typically following an address–explanation–instruction–closure sequence. In contrast, spontaneous suicide notes exhibit present-focused immediacy, fragmented structure, and reduced punctuation control, reflecting acute emotional crisis and cognitive constriction. Within the present dataset, these stylistic patterns appear analytically consistent across gender, age, and regional backgrounds. However, this consistency should be interpreted as corpus-specific and theory-validating rather than statistically generalizable beyond the analyzed cases. This suggests that, in this dataset, linguistic indicators of suicide planning are more closely associated with psychological state than with demographic variables, without implying statistical generalizability. The study demonstrates that forensic stylistic analysis provides an analytically informative and theoretically consistent linguistic basis for distinguishing planned from spontaneous suicides within the present corpus, with implications for forensic interpretation and suicide prevention in the Indonesian context.