Counter-terror police are helping with the investigation into the stabbing of a soldier – as detectives are given more time to question a man. The victim, who is in his 40s, was rushed to hospital after the attack in Gillingham where he remains in a serious but stable condition. Armed police, forensic officers and paramedics were called to Sally Port Gardens near Brompton Barracks at about 6pm on Tuesday evening after reports a man riding a moped had stabbed someone. A huge police presence has remained at the scene – as well as Mooring Road in Rochester, where a red moped was removed and a 24-…