**Core Concept**
Forensic identification is the process of using scientific methods to determine the identity of an individual or a piece of evidence in a legal context. This involves the application of various techniques, including DNA analysis, fingerprinting, and facial recognition, to link a suspect to a crime scene or a victim.

**Why the Correct Answer is Right**
Forensic identification typically utilizes DNA analysis, which involves the extraction and comparison of genetic material from a sample. This can be done through various methods, including PCR (polymerase chain reaction) and STR (short tandem repeat) analysis. By comparing the DNA profiles of a suspect and a crime scene sample, investigators can determine whether they match, thereby establishing a link between the two.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because, while DNA analysis is a key component of forensic identification, it is not the only method used. Other techniques, such as fingerprinting and facial recognition, are also employed in certain situations.

**Option B:** This option is incorrect because, while DNA analysis can be used in conjunction with other forensic techniques, it is not a substitute for them. A comprehensive forensic investigation often involves the use of multiple methods to establish a suspect's identity.

**Option C:** This option is incorrect because, while DNA analysis can be used to identify a suspect, it is not the only way to do so. Other methods, such as eyewitness testimony and forensic anthropology, may be used in certain cases.

**Clinical Pearl / High-Yield Fact**
One key aspect of forensic identification is the importance of maintaining chain of custody, which refers to the process of documenting and controlling the handling of evidence from collection to analysis. This is crucial to ensure the integrity and reliability of the evidence.

**Correct Answer: D. DNA analysis**