<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is the main purpose of forensic science? Context: The main purpose of forensic science is to use scientific principles and techniques to investigate and solve crimes. Answer: [/INST]The main purpose of forensic science is to use scientific principles and techniques to investigate and solve crimes.</s>