A report by the Office of the Inspector General (OIG) of the US Department of Homeland Security (DOH) has claimed that US immigration staff find it difficult to assess whether applicants for L-1B visas have 'specialized knowledge'.
L1 visas are intra-company transfer visas which allow international companies to transfer a member of staff, who has worked for them for at least one year in the last three years, to work in the US from its operations elsewhere.
There are two distinct L1 visas;