The individual has persistent symptoms of anxiety or increased arousal that were not present before the trauma. Nor are they able to avoid like situations, i.e., crime scenes, location of TA's, hospitals, and so on. Being unable to avoid these places or people, means that an officer may, emotionally, shut-down. Diminished interest means some officers won't bother to ask for help, or may cause others to withdraw from treatment, as being not worth the trouble.
Sleep disturbance is an especially disturbing symptom for police officers.
A year later you get divorced. You may have symptomology going back two years to the original shooting. Ckeck it out. Officers need to be aware that there really is a difference between being detached and having markedly reduced ability to feel emotions. Forshortened future is a difficult symptom for many officers.