OLR Report 2014-R-0266 answers the question: What laws govern possession and carrying of dangerous weapons in Connecticut?
State law prohibits the possession of dangerous weapons by most people. The only people authorized to carry all of the prohibited weapons are peace officers, and they may carry them only in pursuit of their official duties.
Other exemptions apply to security officers, who may carry batons or night sticks when pursuing their official duties; martial arts students or instructors, who may carry martial arts weapons while in classes or at authorized events or while transporting the weapons to and from such places; and participants attending or returning from authorized Boys Scouts and Girl Scouts events or competitions, who may possess BB guns. The law also contains limited exceptions for long knives.
For more information, read the full report.