It's not a matter of PC. It's a matter of knowing what information is useful and relevant, and which is not. One of the neighbours have now said that he'd had a conversation with one of the attackers about his (the neighbour's) van, what it was like, etc. It struck him as a little odd at the time, but not in any particular way. It's only in hindsight that he understood what the conversation was about. We have enough data. We need better expertise in profiling what data is useful and what is not.
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