You have to enable the filter to show the Legend box. The legend control allows the user to individually turn on/off any available layers.
Select what you want to search for:
Select the relevant time period from the drop down list.
The interactive map contains a number of tools to help you zoom in and pan around the map to locate the desired case/property:
Click a polygon to display summary information on that record.
You can add a map search to your Saved Searches list in one of two formats:
You can preview the circular search that will be saved by selecting a proximity distance from the drop down and clicking the show on map checkbox.