Border control comprises not only checks on persons at border crossing points and surveillance between those border crossing points, but also an analysis of the risks for internal security and of the threats that may affect the security of external borders.
Mar chuid de rialú ag teorainneacha ní hamháin go ndéantar seiceálacha ar dhaoine ag pointí trasnaithe teorann agus faireachas idir na pointí trasnaithe teorann sin, ach déantar anailís freisin ar na rioscaí atá ann don tslándáil inmheánach agus ar na bagairtí a d’fhéadfadh cur isteach ar shlándáil na dteorainneacha seachtracha.