I’m sure you are all completely correct. You were schooled in different LEA’s but I highly suspect this could have been the case here at this school as well. I have no evidence that suggests Birmingham categorically required <em>all</em> CP must be recorded. So, if either illicit and / or the standard in-situ classroom CP was meted, then yes, it would likely not have been recorded. It’s frequency may well have exceeded the recorded incidents by many multiples.
This has always raised the question for me: What’s the point of keeping records if they are selective, seriously incomplete and unrepresentative because of all the unrecorded in-situ CP?