The invention relates to a pilfer-proof dispenser for storing first aid items that may comprise a kit. The dispenser comprises a support and at least one cassette securely attached to a first aid item, said cassette being removably attached to said support by attachment means and being further provided with first locking means distinct from said attachment means. The dispenser further comprises a locking bar having second locking means to lock the cassette into a non-movable position on the support, said bar being moveable with respect to the support between a first position wherein said second locking means cooperates with said first locking means of said cassette to lock said cassette in said non-movable position and a second position wherein said first and second locking means do not lock said cassette. The support is further provided with means to restrict movement of the locking bar from said first position.
