Advice please...

Jul 2020
Hi. Advice please? I am looking to be a Forensic Psychologist in a prison.
I have BSc(hons) Criminal Justice Studies with Psychology (2:2) and MA Social Sciences (previously Forensic Psychology & Criminology). Neither are BPS accredited though. Currently I am teaching in a school. So what do I do now? Do I apply for an online MSc Forensic Psychology & Mental Health which is BPS accredited or do I Apply for a PHD in Education? Which is likely to get me into my wanted job role quicker please? Ie I don't really want to do another Master's but if that is more suitable subject wise is if better to opt for that? Thankyou for your help .