A border checkpoint is, as its name suggests, a place on the land border between two states where the travellers and / or goods are inspected. Authorization is often required to enter a country through its borders. Access-controlled borders often have a limited number of checkpoints where they can be crossed without legal sanctions. International and supranational arrangements may be formed to allow or mandate less restrained crossings (e.g. Schengen Agreement). Land border checkpoints can be contrasted with the customs and immigration facilities at seaports, international airports, and other ports of entry.

Checkpoints generally serve two purposes:

• To prevent entrance of individuals seen as either a criminal or potential threat or otherwise undesirable.
• To prevent entrance of good that are illegal, subject to restriction or to collect tariffs.

Checkpoints are usually manned by a uniformed service (sometimes referred to as customs service or border guards).

Checkpoints feature especially in political stories and spy novels as the place where one officially changes from one jurisdiction to another, frequently from friend or neutral to enemy. Borders can also represent a large contrast between the culture, political system and-or wealth on either side of the border. Also, when attempting to cross boundaries illegally, the checkpoint is seen as the last and frequently most difficult encounter immediately preceding the other country.

It's also popularly associated with the order "Your papers please".

The Schengen Borders Code, which forms part of the law of the European Union defines some terms as follows (particularities with respect to the EU are left out, in order to emphasize general usability of those definitions):^[2]

• "Border crossing point" means any crossing point authorized by the competent authorities for the crossing of external borders (Article 2 sec. 8 of the Schengen Borders Code);
• "Border control" means the activity carried out at a border, [...] in response exclusively to an intention to cross or the act of crossing that border, regardless of any other consideration, consisting of border checks and border surveillance (Article 2 sec. 9 of the Schengen Borders Code);
• "Border checks" means the checks carried out at border crossing points, to ensure that persons, including their means of transport and the objects in their possession, may be authorised to enter the territory [...] or authorised to leave it (Article 2 sec. 10 of the Schengen Borders Code);
• "Border surveillance" means the surveillance of borders between border crossing points and the surveillance of border crossing points outside the fixed opening hours, in order to prevent persons from circumventing border checks (Article 2 sec. 10 of the Schengen Borders Code).

• Alcabala
• Border
• Checkpoint Charlie and the Berlin Wall
• Garitas in Mexico
• The United States–Mexico border
• Schengen Treaty
• Customs
• Border control