Hit button : “search vehicles”

This will open a new tab. If known, enter the license plate, in the appropriate caption :

If license plate is not known number, leave that caption blank : the query will concern all the vehicles.

Similarly if time range is known, select it.

It is also possible to select one or more places where the videos were shot :

Click “ok” and results with images appear (it can last a while if there are a lot of vehicles):