#CheckInPoints

Check-in points, also known as checkpoints, are designated areas where individuals or vehicles are stopped for inspection, verification or clearance. These can be found at:

- *Borders*: Frontieres where travelers are inspected and cleared

- *Security Checkpoints*: Airports, government buildings or events where security screening occurs

- *Research Checkpoints*: Points in a study or experiment where data is verified

Checkpoints serve as control points to ensure safety, compliance or progress tracking. In everyday usage, checkpoints refer to physical locations where some form of inspection or verification takes place ¹ ².