CIT = Citizenship (or Citizenship-related screening). In short:
This means your security screening is or was handled by CSIS under their “CIT” category, which is a normal part of immigration background verification.
Have you heard back yet?
What does 'bring forward date' mean? Does anyone know about it? I have been stuck in comprehensive security and contacted my local MP, who said 'bring forward date' has been noted on my file. What could that mean, please?