The term migration refers to the movement of population from one place to another. It may be of temporary or permanent type. While immigrant is a person who is entering a country from another to take up new residence. The activity of migration has take place since the beginning of human being from their first home in Eastern Africa to all over the world. Ever since civilization, humans tend to categorized immigrants into legal and illegal based on few factors which vary from one civilization to another.

Legal immigrants has always play a significant roles in boosting the economic growth of the country. In fact, most of the time, economic factor is the main reasons to bring in legal immigrants to fill up the human resources gap exist in any migrated country. It is proven that some economic superpower would not be at the level they are right now if its not because of migration that took place centuries before. United States for an examples is hardly united themselves or reached the level they are right now should they resist to migration and depends on the Apache Tribe for development and the Cherokees for governing. Same goes to other country country like Australia, Canada and etc. Apart of occupying the unemployed positions, the legal immigrants always, at one particular time will have the tendency to get involved in the economic not only as a small player at the dispense of working in small position, but also as a big or main economic player by venture in enterprenuership. Viewing the situation here in Malaysia as an example, it is obvious as it seen that the legal immigrants or even the illegal immigrant is at all time is increasing their enterprenuership share in the country which perhaps was their initial expertise back home.

While the assistance of legal migration is pretty much appreciated, there is also space that really have to be taken care off. Currency outflow is rising at an alarming rate nowadays, to every single directions out of the country. Someone does not has to be an economist or financial advisor to understand the mechanism of this outflow. It work strictly on the typical immigrants practice and tendency to harvest as much as possible, spend as minimun as possible and send the most amount of money back home to their family. Other than currency outflow, the government is also having troubles with increasing number or consumption of subsidized items as well as goverment facility such as hospital, public transport and etc.

Politically, the in demand country may have to abide some of the rules implicated by the country who like to be supplied with legal immigrant which involved very much on strategic level. Over some duration or period of time, issues will arise and there is a possibility of conflict which can be exaggerated. In some place, where migration means a right for a vote, it will definitely going to cause parliamentary or seats redistribution.
Legal migrations undoubtedly will inflict or futher enlarge the multiracial scenery in a country due to the high possibility of multiracial marriage to take place resulting an interacial or subracial community. Thus, further enhance varieties of culture and create room for the development of new interesting things. Though the positive values is anticipated, there is certain backblast from the impact of migration as far as social aspects is concern. Patriotism and self belongingness in locals would clash with self reliance and hardworking of legal immigrants resulting in creations of tense and social dilemma among both parties. Other than that, even legal migration is capable of creating various type of social problems among society in migrated country. Eyeing on Malaysia as an example, it is proven that most of immigrant migrated together with their own social history and contributing towards the increase of crime rate as well as violence. It is known that the legal immigrant was initially brought into a migrated country to help resolving the lack of human resources in some industry. Most of the time, not every company or corporation is keen enough to abide the rules and regulation underlined by the authorised body. By doing this, the corporation is actually creating unemployment for the local since it is always cheaper and easier signing for immigrant.