A border checkpoint is, as its name suggests, a place between borders where the identities of the ongoers or their cargo are evaluated.

The Schengen Treaty defines the following:

• Border crossing point shall mean any crossing point authorized by the competent authorities for the crossing of external borders;
• Border control shall mean a check made at a border in response solely to an intention to cross that border, regardless of any other consideration.

Reference

• http://w4u.eexi.gr/~antbos/body1.htm (checked 08/2003)