Police officers were at railway stations in Rother and Hastings last weekend speaking to passengers about the threat of terrorism.
It was carried out as part of a series of events to brief communities on the terrorist threat, as part of national Counter-Terrorism Awareness Week.
Across Sussex more than 100 police officers and staff handed out leaflets and spoke to people to help promote reporting of suspicious activity with an ultimate goal of building confidence and reassurance.
Officers and staff taking part include many who normally work in less visible areas of policing, such as such as staff training, professional standards, witness care, schools liaison and command teams, and they will be joining local frontline colleagues.
Assistant Chief Constable Steve Barry said; “The key message is that local communities play a vital role in preventing and identifying terrorism and by working together we can make people safer.
“We are encouraging the public to call the confidential Anti-Terrorist Hotline on 0800 789 321 if they have seen or heard anything that could be terrorist-related.
“We used the opportunity of this Awareness Week to hold events as part of our continuing series of ‘All Out Days’ in which colleagues who usually work in essential but less visible areas of our work can support frontline colleagues giving the added benefit of enhanced visibility out on the streets of Sussex.
“We look forward to engaging proactively with the pub to promote the reporting of suspicious activity, to encourage dialogue on terrorism issues and reinforce reporting mechanisms and to encourage the public to be vigilant and alert but not alarmed.
Sussex Police and Crime Commissioner, Katy Bourne, said: “”This is an important exercise given the current climate that we are living in.