A FEMALE juror was seen mouthing 'bye boys' to the defendants in the dock of the PC Harper murder trial. 

The overly friendly juror was spotted by a prison officer. 

On being alerted to the incident, Mr Justice Edis said: "She must have been compelled by some strong motive to have behaved as she did in this court under the observation of so many.

"It was both overt and covert at the time, which is remarkable behaviour."

The female juror was discharged just a day before the remaining 11 men and women began deliberating on their verdicts.