 On data retention The EU directiveEuropean Data Retention Directive calls for the preservation of all call detail records for at least 6 months by all member states.
<clarity>  On data retention The EU directiveEuropean Data Retention Directive calls for the preservation of all call detail records for at least 6 months by all member states.
 On data retention The EU directiveEuropean Data Retention Directive calls for the preservation of all for at least 6 months by all member states.