it's crucial that people stay "alert but not alarmed" about the prospect of a terror attack.
But if the worst does happen and you do get caught up in an attack, his top tips are simple strategies - but ones you may not think of in the panic of the moment.
He said: "'The people who are there to carry out these terrorist attacks are there to kill you and your western lifestyle.
"Run, for example, means don't hide under a table or play dead. Run out of the building. Don't try to negotiate.
"Hide means that if you can't get out of the building, barricade yourself behind a steel door, stay quiet and turn your phone on silent."
He added: "Then tell - phone the police as soon as you can, give exact locations, what kind of weapon the terrorist might have had, are there any casualties."
"It's about remaining calm and getting yourself to a safe place. The examples might be really simple but how many people would think of these actions when they're in that situation?"
What to do during a terror attack
1. Run away from the danger zone
2. Hide within a building behind steel doors
3. Barricade yourself in where possible
4. Stay quiet and turn your phone on silent
5. Call 999 and give detailed information
What not to do during a terror attack
1. Don't attempt to negotiate with the terrorist
2. Don't hide behind a desk or a normal wall
3. Don't play dead - try to get out of the area instead
Last month, it was announced more armed police will patrol London - equipped with rifles, hand guns, tasers, ballistic shields and BMW motorbikes.
But D.C. Supt Wilson added that calling in key information via 999, such as exact locations and the number of attackers, is invaluable for authorities responding to a terrorist incident.
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