I am currently in the process of applying for my 820 visa and have been asked by my CO for a stat dec regarding something that has come up during my UK police check. The offence in question only resulted in a warning and I was under 18 when it happened. Did this need to be declared on my application? I don't think it falls under the being a conviction however I am not sure how to move forward apart from giving a full written explanation. I have tried contacting a few agents here in Perth but no one seems to want to help me as they are too busy. Any advice would be welcomes thank you.