Mojo, the hero police dog, left mentally scarred and losing hair after Manchester Arena attack –

Pc Phil Healy, 46, said he and Mojo have visited the arena several times since the attack.

The dog patrolled the arena for its reopening on Saturday, despite having not recovered from the trauma.

He said: “On the night of the arena attack, it was such a long, long day – Mojo did 11 hours of searching there.

“About a week afterwards, he developed stress-related alopecia. His hair started falling out and we are sure it was brought on by that night.