A feasibility study should be carried out to determine how best to ensure, while taking full account of requirements relating to personal freedoms and data protection, that the competent authorities in the European Union are informed of an individual's criminal convictions. Such a study should cover, in particular, the types of conviction that should be concerned and consider which of the following would be the best method: (a) to facilitate bilateral information exchanges; (b) to network national criminal records offices; or (c) to establish a genuine European central criminal records office.