Data are examined from two hundred and fifty-six cases of incompetent, indicted felony defendants reviewed under a 1971 New York State statute that necessitated determinations of dangerousness. The major finding was the significant relationship between the defendant's alleged offense and a psychiatric finding of dangerousness. This relationship explains others between hearing location, reporting psychiatrist, psychiatric diagnosis, and dangerousness. Age and race were unrelated to charges and dangerousness. The extremely high concurrence rate between psychiatric recommendations and judicial determinations of dangerousness—87%—raises some serious questions about the appropriateness of predicting dangerousness in involuntary criminal and civil commitments in the light of the conceptualization and criteria problems shown by the data.