Advertising trays for security screening

A method comprising

• positioning a first tray cart containing trays at the proximate end of a scanning device through which objects may be passed, wherein said scanning device comprises a proximate end and a distal end,
• removing a tray from said first tray cart,
• passing said tray through said scanning device from said proximate end through to said distal end,
• providing a second tray cart at said distal end of said scanning device,
• receiving said tray passed through said scanning device in said second tray cart.

An apparatus for use as a tray cart for securing a facility comprising

• a roughly rectangular base having a bottom surface and a top surface,
• a plurality of wheels attached to said bottom surface of said base, and
• a vertical positioning member attached to said top surface of said base,
• wherein said vertical member comprises at least one approximately C-shaped tubular member having a first end and a second end, wherein said first end and said second end are connected to said base.

A tray for use in a security scanning system comprising,

• a base having a first surface and a second surface,
• four containing walls extending approximately vertically from said base,
• shock absorbing material on said first surface of said base, and
• wherein said one or more of said walls displays a tag number.