In the game Papers, Please, utilizing the search scanner is an essential aspect of gameplay that enhances the border control experience once it is unlocked during the mid-to-late game progression. To effectively scan a traveler’s collection for contraband, follow these detailed steps:

1. Obtain the Scanner: Ensure that the search scanner system has been installed in your booth following significant events in the game, such as a bombing. This is a crucial development, as it grants you the ability to conduct searches.

2. Select the Collection: When an entrant presents their items (suitcase or personal belongings), focus on selecting the collection. This is typically done by clicking on or highlighting the item associated with the traveler.

3. Activate the Scanner: Once the collection is selected, access the scanner interface. This can be accomplished through either the space bar or mouse clicks, depending on your preferred method of control. Activate the scanner to initiate the scanning process.

4. Identify Contraband: The scanner will visualize the contents of the collection, allowing you to see any hidden items. Pay attention to the display as it reveals the presence of forbidden items such as weapons, drugs, or any other contraband listed in your rule book.

5. Cross-Reference Findings: After identifying any items, consult your rule book to confirm their legality. Each item must be measured against the regulations to determine if the item is considered illegal to bring into the country.

6. Take Action: If contraband is discovered within the collection, you must take appropriate action as stipulated by the game rules. This could involve rejecting the entrant’s application for entry or applying penalties as necessary to maintain the integrity of border security.

7. Progress Responsibly: Remember, the game tracks your actions and decisions. Confiscating contraband and appropriately handling entrants who attempt to smuggle illegal items is necessary for progressing in the game and maintaining your standing as a border inspector.

In summary, the use of the scanner is an integral part of your duties as a border inspector in Papers, Please. By properly scanning and assessing collections of travelers, you can ensure that you uphold the law and manage the influx of individuals crossing the border effectively. Be mindful that this mechanic becomes available after certain key events, so patience in advancing through the narrative is necessary to gain access to this crucial tool.