What describes a common limitation of gathering evidence through digital means?

The correct choice highlights a significant factor in the world of digital evidence collection. Gathering evidence through digital means often necessitates specific computer skills or knowledge regarding technology and data management. This requirement can become a barrier for those who may not be proficient with computers or digital tools, potentially leading to gaps in evidence collection or analysis.

In contrast, the other options present misconceptions or lesser limitations. Digital evidence can come at a cost, especially when considering software, tools, or services that may not be free. Additionally, stating that it is less effective than traditional methods overlooks the unique advantages that digital evidence can provide, such as the ability to analyze large datasets quickly. The idea that digital evidence is only useful for outdoor surveillance is inaccurate, as digital tools can be employed in various environments and contexts, including indoor situations and the analysis of online behaviors.