What are hints, and what are they used for? February 05, 2024 18:09 Updated Hints are special tools that make it easier to investigate scenes. In some modes, there are special hints that are only available in that mode. For example, Night Vision in the Night mode. Related articles What search modes do crime scenes have? Can I complete the game without in-game purchases? Can I buy items during an investigation? What are Crystals for? What hidden object modes are there?