Chain of Command
The Chain of Command is put in place solely to smoothen the information on who you should contact, should you be in need of something, or wish to report something.
If there's an issue with the unit you're part of, report to your unit leader, if that doesn't work, speak with the divisional leader.
Should there be an issue with breach of policy or wrongdoing of a FireFighter and a superior isn't available, you should report to Internal Affairs, through their contact form. However, you should always follow the Chain of Command before you refer yourself to Internal Affairs.
How it exactly works:
Taking an example that your current rank is an FF/EMT, you experience a situation on a call with one of the Probationaries, you don't like how the Probationary handled, so you report this to the Incident Commander which is mostly a Lieutenant. In case you can't find a Lieutenant, you can reach out to a Captain, or anyone higher in case those two listed ranks are unavailable.
The Chain Of Command is listed below.
Recruitment & Training Command
FF/EMT (All Paygrades)
FF/Paramedic (All Paygrades)
CPQL Internal Affairs