The critical IPCC report looked into why murderer Michael Atherton had a firearms licence, when he had a history of domestic violence.
Atherton shot Susan McGoldrick, Alison Turnbull and her daughter Tanya Turnbull before turning the gun on himself in Horden, County Durham.
More top news
Dry, warm and sunny with sea breezes. Isolated heavy showers by evening and overnight
People caught littering in Stockton-on-Tees will now face a £130 fixed penalty fine.
Hundreds of people will lose their jobs following a collapse in diesel sales across Europe.