Most people immigrate to other countries for better job prospects and eventually a better living option. Marriage is another reason why people choose to immigrate to another country. While these are valid reasons for immigration along with a legal backing, wars and hostilities between countries can also trigger illegal immigrations.
Immigration interviews are legal formalities that keep the immigration population under check. Illegal immigrants, people living under fake documentations etc. come to light with these interviews. And most importantly, in today's world immigration interviews come to the rescue, when terrorism needs to be curbed at a grass root level.
Countries design stringent immigration laws. Eventually, these interviews are nerve racking and tough to crack. Immigration authorities draw up a strict interview with zero leniencies. This leaves the applicants with no choice but to prepare accurately with all of their papers, certificates, photos and other necessary documents.
There are host of rules and regulations to be eligible for immigration to a country. These rules are country specific. The basic criterion for eligibility is the reason for immigration. Applications, documentation, verification, interviews etc. follow closely.
In the United States of America, the Bureau of U.S. Citizenship and Immigration Services (USCIS) handles immigration procedures. An officer from the bureau conducts the interview in a comprehensive manner. Questions based on the submitted documents and related to personal information are asked during the verification round. Applicants have to take care not to arouse suspicion in the officer's mind and provide honest answers. An applicant's acceptance or rejection relies totally on the observations made by the interviewing authority.