Why are DNA tests not routinely done on a set of remains at the beginning of a forensic investigation?

DNA tests are not routinely performed on remains at the start of a forensic investigation due to several factors, including the time and resources required for DNA analysis, which can delay the investigation. Initial efforts often focus on establishing the identity of the remains through more immediate methods, like visual identification or dental records. Additionally, forensic teams aim to preserve the integrity of the evidence and may prioritize collecting other types of physical evidence that can provide quicker insights into the case.