Governments take often shockingly blunt action to deter refugees and other migrants found on the high seas, in their island territories and in overseas enclaves. There is a pervasive belief that when deterrence is conducted at arms-length from the homeland it is either legitimate or, at the very least, immune from legal accountability.
Hathaway, James C. "The False Panacea of Offshore Deterrence." Forced Migration Rev., no. 26 (2006): 56-7.