Dangerous people or dangerous situations? Some further thoughts

The author enlarges upon and develops some observations upon the assessment of dangerousness which appeared in this journal a decade ago. In the present contribution, particular attention is paid to identifying the type of person at risk of committing further acts of serious personal harm to persons and or property and to the factors or circumstances that may be conducive to this. Finally, the author puts forward some views on why cues and clues may be missed and how these omissions might be overcome. 'Between the acting of a dreadful thing And the first motion, all the interim is Like a phantasma, or a hideous dream' Julius Caesar, Act II Scene 1.