Here are Sussex Police's top signs that someone could be a terrorist

Sussex Police is urging the public to help the police tackle terrorism and save lives by reporting suspicious behaviour and activity.
Sussex PoliceSussex Police
Sussex Police

Below is a checklist of the signs and behaviours issued by the police force which could point towards someone being a terrorist. For more information, visit www.gov.uk/ACT or follow Counter Terrorism Policing on social media.