How long does it take to become a volunteer? Expand Volunteering within the Criminal Justice sector can take time due to the very specific recruitment procedures that need to be followed. We are regularly updating our volunteering vacancies page with new opportunities, so please keep checking back. As soon as we start processing applications, we will get in touch to let you know if you have been successful or not. If successful, you will be invited for an initial interview. If you are successful at interview, we will carry out vetting (including reference checks) and invite you to take part in induction training.