If you want to go for the Forensic Science then technically it would be better if you can go for the Life Science and Chemistry. There are many universities which induce the condition of having Chemistry or Physics as one of the subject in the UG. So keeping chemistry can give you a edge towards your goal.

After MSc In Forensic Science you can have the following work profiles:

• Forensic Scientist
• Crime Scene Investigator
• Forensic Expert
• Customs Agent
• Forensic Geologists
• Forensic Engineer

To know more about MSc IN Forensic Science visit the link below:

https://www.careers360.com/courses/msc-in-forensic-science

I hope this answer helps. All the very best for your future endeavors!