Blake-Fielder Civil's prison inmates are out to get him; Amy seen out at 4am with her guitar

Prisoners locked up with Amy Winehouse's husband Blake Fielder-Civil are reportedly after his blood.

According to British newspaper The Sun, inmates at London's Pentonville prison have got a grudge to bear with Blake - who's locked up on assault charges and conspiracy to pervert the course of justice, because of the way he treats wife Amy.

The 'Rehab' star, 24, was questioned by police on Tuesday over an alleged plot to fix Blake’s trial.

A prison source said: “If Blake’s got Amy involved in this, he’s in a lot of trouble.

“Prisoners are very protective of their women.” Blake is awaiting trial over assault and trial-fixing allegations."

Meanwhile, troubled Winehouse was seen parading around London with her guitar with pals yesterday (Wednesday) - after she had been freed on bail.

A pal said: “She kept her answers simple and denied doing anything wrong.”

Before she spoke to police, Amy’s friends believed she was being arrested over drugs.

They believe it was a ploy to get Amy’s DNA after cops allegedly found traces of cocaine in chewing gum in the raid at her home.

While Amy was being quizzed, a mate said: “In the raid they reckon they found gum with coke in it. But to do a DNA test they need to arrest you.”