Depending on the holster or scabbard design, it may be possible to carry an expandable baton in either collapsed or expanded position, which would be helpful if an officer needed to holster an expanded baton and it was not possible or convenient to collapse it at the time. An expandable baton is opened by being swung in a forceful manner while collapsed, using inertia to extend and lock the segments by friction. Some mechanical-lock versions can also be opened by simply pulling the segments apart. Depending on the design, expandable batons may be collapsed either by being brought down (inverted) on a hard surface, or by depressing a button lock and manually collapsing the shafts. Additionally, the baton, in collapsed configuration, may be used as a control device against non-compliant subjects in conjunction with pain-compliance control techniques, such as to remove a driver refusing to exit his or her vehicle. It can be used as a large kubotan.