Figure 21 shows the search function. The IPSS supports
several searching criteria such as searching for the specific license
plate, searching for the motorcycles check-in/out at a
time period, etc. The retrieval results return in detailed
information, e.g., the in/out images of driver's face, the
in/out images of license plate, in/out date-time... so that
the security-guard can easily retrieve the information when
necessary (e.g., for secure reasons, stolen happen,..)