Regardless of whether an immigrant is green card, student, h1b, illegal, naturalized citizen or other,
No immigrant should come here to commit crime.
The study should not be limited to just one type of immigrant.
Same goes for drug use, there are 1.33 Million Chronic Pain responsible users of legal narcotics. No one tracts the stats on those who commit suicide because the pain becomes to great. They lump them in with those who OD on street drugs or booze mix. Now docs are afraid to issue a pain med. Doctors are cutting opioids, even if it harms patients
https://www.bostonglobe.com/metro/2017/01/02/doctors-curtail-opioids-but-many-see-harm-pain-patients/z4Ci68TePafcD9AcORs04J/story.html
All this stuff you see on TV is propaganda.