BBC’s Line of Duty returned to our screens on Sunday night for season six – but many fans were left confused by the language.Line of Duty fans will be aware that mind-boggling acronyms are a normal part of police-speak – but it doesn’t make it any less confusing.During the first episode of season six, fans took to Twitter to ask what CHIS stands for – as it was used very often throughout the programme.One person wrote: “Be Honest.
You Googled CHIS in the middle.”Another wrote: “So, I guess Series 6 of Line of Duty means we’re all ready to collectively ask… What on earth is a CHIS?”.But if you want to stay on top of things for the next few weeks, it’s not just CHIS you’ll need to know the meaning of.There are several acronyms which may have.
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