1. Present simple tense: Used throughout the answer (e.g., "Police now rely on...", "digital evidence... can be crucial") to state general facts and routines, which is appropriate for discussing how technology affects the law.
2. Listing with examples: The phrase "things like CCTV, facial recognition, and even GPS tracking" uses a natural listing structure, showing a range of examples in a conversational way.
3. Passive voice: "can be crucial" is a passive construction, which is common when the focus is on the importance of the evidence rather than who uses it.
4. Comparative adverb: "more efficiently" is used to compare how technology improves the process of solving crimes, showing a good grasp of comparative structures.