uncleroot, для стимуляции размышлений - слова Дамблдора о нападении:
"The attacks on them came after Voldemort's fall from power, just when everyone thought they were safe. Those attacks caused a wave of fury such as I have never known. The Ministry was under great pressure to catch those who had done it".
То есть, точно не на горячем и точно не на второй день после падения Лорда - все уже успокоиться успели.