How many measurements are typically taken to establish Triangulation coordinates?

Triangulation is a method used in crime scene investigations to establish precise locations of evidence by forming triangles between points of reference. To effectively set up triangulation coordinates, measurements from at least two known reference points are needed. These reference points help to create a triangle with the point of interest, allowing for accurate location plotting.

Using two measurements provides a basic structure for triangulation, while four measurements can improve accuracy and reliability. Having multiple reference points reduces the likelihood of errors caused by inaccuracies in individual measurements. This combination of measurements ensures that the location of evidence is correctly recorded with a high degree of precision. Hence, the correct answer reflects the importance of taking multiple measurements for effective triangulation in crime scene investigations.