Line of Duty’s hated DS Patricia Carmichael tapped out ‘H’ in Morse code in bombshell clue

LINE Of Duty fans are convinced hated DS Patricia Carmichael is the shadowy ‘H’ after tonight’s explosive episode.

At one point she hammered her pen on the desk four times – spelling out ‘H’ in Morse Code.

Morse Code is an alphabet that spells out words or messages – for example the distress signal ‘SOS’ – using a series of short and long sounds.

But by tapping out four short sharp raps on a table, as Carmichael did, it indicates the letter ‘H’.

The criminal mastermind – known only by the single letter – has long been thought to be at the heart of police corruption on the BBC show.

Many now put Carmichael, played with loathsome brilliance by Anna Maxwell Martin, as favourite to be exposed as H.

One fan wrote: “Don’t mean to alarm anyone but  at Carmichael’s pen? Tapped four times and H in Morse code is • • • •.”

Another tweeted: “PATTY C JUST TAPPED 4 TIMES MORSE CODE FOR H??”

In an epic interrogation scene in tonight’s Line Of Duty, the DS repeatedly steered the conversation away from police corruption while interrogating Jo Davidson.

And she slapped down Supt Ted Hastings when he attempted to talk about his favourite subject, the “fourth man” pulling the strings inside Central Police.