(1) Whether there have been any incidents of vehicles crashing through the Maseru Bridge port of entry in the past five years; if so, how many; (2) whether any of these incidents were accompanied by violence including the discharge of firearms; if so, what are the relevant details; (3) whether there are any vehicle arrester spikes or systems in place to prevent such incidents; if not, why not; (4) whether she intends installing such a system; if not, why not; if so, what are the relevant details?