They were among the first on the scene after the Manchester Arena attack.
Now a group of Greater Manchester police officers are helping again.
They are hosting a ball later at Lancashire Cricket Club to raise money for those affected by the atrocity in May 2017.
Sam Gaunt is one of the organisers of the event.
Choirs will come together to sing in Albert Square on May 22nd
The ‘Spirit of Eilidh’ pays tribute to Eilidh MacLeod - one of 22 people to lose their lives on May 22 last year.