In USA it's called Forensic Pathology.
In order to be able to practice it, you need to have finished Anatomic Pathology Residency and then subspecialize in forensic pathology to be Forensic Pathologist.
The other common branch of pathology (examination of tissue samples from living bodies) is called clinical pathology.
Most pathology residency programs do train you in both branches.
Once you finish your pathology residency you can be trained in the following subspecialties:
- Blood Banking/Transfusion Medicine
- Chemical Pathology
- Cytopathology
- Dermatopathology
- Forensic Pathology
- Hematology
- Medical Microbiology
- Molecular Genetic Pathology
- Neuropathology
- Pediatric Pathology