Introduction: When the map first loads the zoom level (scale of the map) is predetermined and the map is centred on the meeting point for the event which is marked by an LPS symbol with a red background (). Other sites which are to be visited during the investigation are marked by an LPS symbol with a black background (). If you place the cursor over a symbol information will appear about that site (which investigation number it is).

Zoom In: There are four ways to zoom in on the map (see smaller detail). Firstly you can put the cursor at the point where you want to zoom then double-click the left mouse button. Secondly you simply rotate the mouse wheel (if you have one) forward. Thirdly you can click the + symbol on the map control (on the left of the map). Fourthly you can click the mouse whilst the cursor is on the zoom bar (between the + and -) which will zoom to the level you are pointing at.

Zoom Out: Likewise there are four ways to zoom out on the map (see a larger view). Firstly you can put the cursor at the point where you want to zoom, press and hold 'Alt' on the keyboard then double-click the left mouse button. Secondly you simply rotate the mouse wheel (if you have one) backwards. Thirdly you can click the - symbol on the map control (on the left of the map). Fourthly you can click the mouse whilst the cursor is on the zoom bar (between the + and -) which will zoom to the level you are pointing at.

Pan: To change the centre of the map simply place the cursor on a point on the map, press the left mouse button and hold it down whilst moving the mouse.

Alternative Views: There are three possible views available for the map as shown on the left hand control panel. 'Road' gives you a standard road map, 'Aerial' gives you a photographic view of the area from above and 'Hybrid' combines the two. Aerial views may not be available for the zoom level you are using, if this is the case then zoom out to see the photographic image.

Other Features: To the right of the zoom bar on the control panel are two buttons. The top one is for the standard map view whilst the other provides a choice of bird's-eye views of the area (not looking straight down). We will let you explore this function by yourself, if you so choose.