LINE Of Duty fans have been locked in furious debate about who's handwriting it seen in the show's finale. A glimpse into the action that takes place on Sunday's episode - which could be the cop show's last ever - includes the mis-spelt word "definate".
As long-time fans of the drama will know, that error has cropped up time and again when the shadowy 'H' has communicated with bent cops.
However, the trailer shows it written on what appears to be an official document concerning Operation Lighthouse - the investigation into journalist Gail Vella's murder.
That puts one of the cops in the frame - and what's more, fans are convinced it's a woman's writing which narrows the field even more.
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