If you travel outside the Freetown peninsula, try to complete your travel during the hours of daylight, inform your employers of your whereabouts and make sure they have copies of your itinerary.
Although there is no recent history of terrorism in Sierra Leone, attacks can’t be ruled out. Attacks could be indiscriminate. You should be vigilant, especially in places visited by foreigners. See Terrorism
If you’re abroad and you need emergency help from the UK government, contact the nearest British embassy, consulate or high commission.
Take out comprehensive travel and medical insurance before you travel and make sure your insurance specifically includes medical repatriation.