Wikipedia
A legal secretary is a particular category of worker within the legal profession.
In the practice of law in the United States, a legal secretary is person who works in the legal profession, typically assisting lawyers. Legal secretaries help by preparing and filing legal documents, such as appeals or motions. It is not unusual for a larger firm to place managerial duties on a particular legal secretary. Much like a paralegal, a legal secretary is responsible for locating relevant information for cases. This type of person would be called a "paralegal" in the UK.
In the United Kingdom and the Commonwealth, a legal secretary is a secretary experienced in working for a law firm or in-house legal department. They assist by giving administrative support to lawyers and are significant members of a team of professionals who work together. The work of a legal secretary varies. They deal with a wide range of challenging legal and business issues, combining their skills with modern technology.
In Ceylon, it used to refer to the head of islands legal arms such as the Attorney General's Office and the Legal Draftsman's office during the British colonial period.