There is an underlying threat from terrorism. See Terrorism.
You should carry an acceptable form of photo-identification to travel between the UK and Ireland. See Entry Requirements.
Around 3 million British nationals visit Ireland each year. Most visits are trouble free.
New drink driving limits were introduced in 2011. See Road Travel.
The Overseas Business Risk service offers information and advice for British companies operating overseas on how to manage political, economic, and business security-related risks.
Take out comprehensive travel and medical insurance before you travel.