EU member Denmark voted Thursday in a referendum on adopting the union's justice rules, with the Paris terror attacks and immigration both major issues in the campaign. The 'yes' camp has focused on the need for international coordination in the fight against jihadism following last month's carnage in Paris that left 130 dead, while a eurosceptic party argues closer EU ties could mean more immigration. "In reality it's about whether we in this small country -- which for better or worse is linked to the rest of Europe -- want to give our police, our authorities the strongest tools to fight crime," Prime Minister Lars Lokke Rasmussen told journalists.