WARNING: Article contains family violence and death of children. A United Kingdom police force has referred itself to the watchdog after it failed to respond.
It comes after it was revealed police officers ignored a 999 call from the address where the bodies were tragically found, as they continue to probe the deaths.
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Bartlomiej Kuczynski, 45 - who was found dead at his home in Costessey, Norfolk, yesterday with his two daughters and another woman - had previously gone missing over the Christmas period.