It was a retrospective studied, and materials that had immigration and discussed ethical connection with immigration where used.
The first phase of the project involves a screening interview where we identify article that discussed immigrations and ethics as one research work that had published the anything having ethics and immigration.
We also use published journals and books published on immigration from that cross is then analyzed. Over 700 articles, where searched about only about 100 had the immigration and ethics. Emphasis was more on immigration issues in the last 10years
The following search engines were used to obtain the following articles; Google, Sciencedirect, Elsevier, yahoo, AOL, Onlinelibrary. wiley.com, ncbi. nim.nih.