Factbox - Sarkozy book sets out his presidential comeback platform

PARIS (Reuters) - Nicolas Sarkozy will run for president in 2017, hoping to return as France's head of state after being unseated in 2012 by the now deeply unpopular Francois Hollande. Sarkozy will join more than a dozen contenders vying for the Les Republicains ticket in primaries, where former prime minister Alain Juppe will be his strongest rival. Below are some key points from his policy platform outlined in a new book "Everything for France". IMMIGRATION * "Drastically reduce" the number of foreigners who canenter France every year. * Any foreigner wishing to become French will have to spendat least 10 years in France before seeking citizenship, comparedwith five years now. * Economic migration must stop during the next five-yearpresidential term. * The right of legal immigrants to bring to France immediatefamily members will be suspended until there is a coherentimmigration policy at the European level. ISLAMIST ATTACKS * Create a special court for "anti-terrorist security". Asimilar court was used in 1963 against the OAS, a far-rightparamilitary organisation that carried out attacks andassassinations in a brief attempt to prevent the independence ofAlgeria, a former French colony. * Sarkozy indicates he favours a return to "doublepunishment" of convicted foreigners - a measure he abolished aspresident. It could require a reform of the European Conventionof Human Rights.LABOUR LAWS * Allow companies to determine the working hours of theiremployees. If management and unions cannot reach an agreement, acompany vote would determine the length of the working week. * The minimum retirement age would be increased to 63 yearsin 2020 and 64 years in 2025. * The working week for civil servants would increase to 37hours from 35 hours. * Unemployment benefits would be gradually reduced. TAXATION * "Immediate elimination" of the so-called solidarity taxpaid by those who have assets of more than 1.3 million euros. * Income tax would be cut by 10 percent as soon as July2017. * Sales of companies would benefit from a tax credit of 85percent or a total tax exemption if the business is maintainedfor at least five years, with a job guarantee for a majority ofemployees. * The tax relief plan for companies implemented under thecurrent Socialist government would be doubled. At least 34billion euros in social contributions would be cut to increaseFrench companies' competitiveness.LAW & ORDER * Stiffen sentences for multiple offenders. After threeconvictions, the offender's sentence would be automaticallyincreased by 25 percent. After five convictions, by 50 percentand after 10 convictions, by 100 percent. * The age of criminal responsibility would be lowered to 16from 18 currently. (Reporting by Mathieu Rosemain; editing by Richard Lough and Jon Boyle)