How can you use the swab tool in CSI Dark Motives for PC?

In CSI: Dark Motives, the swab tool is used to collect samples from crime scenes, such as blood or other biological evidence. To use it, select the swab from your inventory and then click on the area of interest in the scene. This will allow you to gather the sample, which can then be analyzed later in the lab to provide crucial information for solving the case. Remember to examine the scene thoroughly to find all possible evidence!