Immigration law determines whether a person is an alien, the rights, duties, and obligations associated with being an alien in the United States, and how aliens gain residence or citizenship within the United States. It also provides the means by which certain aliens can become legally naturalized citizens with full rights of citizenship. Immigration law serves as a gatekeeper for the border of the nation, determining who may enter, how long they may stay, and when they must leave. Immigration lawyers represent persons seeking temporary and permanent residency (green cards) status in the U.S., those interested in obtaining U.S. citizenship through a process called naturalization, and clients facing deportation and removal. Immigration attorneys may also represent businesses seeking to secure temporary visa status for foreign employees.
Indian Head is a town in Charles County, Maryland, United States. The population was 3,422 at the 2000 census. It has been the site of a naval base specializing in gun and rocket propellants since 1890. Production of nitrocellulose and smokeless powder began at the Indian Head Powder Factory in 1900. The name of the base has varied over the years from Indian Head Proving Ground, to Naval Powder Factory, to Naval Propellant Plant, to Naval Ordnance Station, to the present Naval Support Facility Indian Head. The facility's main tenant activity is the Indian Head Naval Surface Warfare Center (NSWC/IH). Advanced research in energetic systems takes place at NSWC/IH. NSWC/IH absorbed the function of the closed Naval Ordnance Laboratory, formerly in White Oak. The base currently employs 3,700.