reach conclusion

"One of my frustrations was that whilst the police were taking the issue seriously, it often took a long time to reach conclusion and that added to public frustration," Ms Long told the BBC's Good Morning Ulster programme.

In Brazil, prosecutors and the defense lay out the details of their cases first for a judge, and then do it again before a jury in a rapid-fire trial that can reach conclusion in a single day.

A year of talks with Iran, led by other signatories to the agreement including the European Union, China and Russia, have so far failed to reach conclusion.

A recent Reality Check report for the BBC noted that just a quarter of cases that reach conclusion resulted in convictions - but few cases even get that far.

And it could take many years for an investigation to reach conclusion.