What are two methods besides blood typing that can be used in the attempted identification of a guilty suspect?

1. DNA profiling. DNA profiling is a technique that can be used to identify a person by analyzing their DNA. DNA is a molecule that is found in all cells of the body, and it is unique to each individual. DNA profiling can be used to compare the DNA of a suspect to the DNA found at a crime scene, and this can help to identify the perpetrator of a crime.

2. Fingerprint analysis. Fingerprint analysis is a technique that can be used to identify a person by their fingerprints. Fingerprints are unique to each individual, and they can be used to identify a person even if they have changed their appearance. Fingerprint analysis has been used to identify criminals for over a century, and it is still a valuable tool in law enforcement today.