Findings could be the tip of the iceberg, watchdog says, as some likened fire service to a boys' club.
The bloc includes nations such as Japan and Australia, but the UK's economy will only get a small boost.
Thomas Cashman, 34, is convicted of shooting nine-year-old Olivia Pratt-Korbel dead in her home.
Years before Olivia Pratt-Korbel was killed, shock at 11-year-old Rhys Jones's death seemed a turning point.
Some fans complained that an area of a sold-out gig at the Liverpool arena in November felt unsafe.