1) Court officer 2) Law enforcement occupation 3) Staff 
The Tipstaff is an officer of a court or, in some countries, a law clerk to a judge. The duties of the position vary from country to country. It is also the name of the rod of authority of such a person or police officer. The emblem of two crossed tipstaffs (tipstaves) is used to denote the rank of assistant chief constable or commander in the UK ...
• (n.) An officer who bears a staff tipped with metal; a constable. • (n.) A staff tipped with metal. • (pl. ) of Tipstaff
Tip'staff` noun ; plural Tipstaff 1. A staff tipped with metal. Bacon. 2. An officer who bears a staff tipped with metal; a constable. Macaulay. 
A tipstaff is a metal-tipped staff which is a symbol of a Sheriff's office. The tipstaff was an officer of the High Court, whose duty it was to arrest and take into custody persons committed to prison by the court.
[n] - staff with a metal tip carried as a sign of office by e.g. a bailiff or constable
An officer of the Supreme Court whose duties involve the enforcement of High Court arrest warrants
noun staff with a metal tip carried as a sign of office by e.g. a bailiff or constable