WA Police have conceded it was a mistake not to oppose the bail application of a man who is accused of shooting another man before spending four days on the run.

Key points: Anthony Valentino was arrested four days after the alleged shooting in Maddington

Anthony Valentino was arrested four days after the alleged shooting in Maddington He appeared in court yesterday, but prosecutors made no attempt to deny his bail

He appeared in court yesterday, but prosecutors made no attempt to deny his bail Police Minister Michelle Roberts said she was disappointed to see him set free

Anthony John Valentino, 41, allegedly shot his victim at a home in Maddington, in Perth's south-east, last Wednesday.

The 31-year-old man was taken to hospital, where he remains recovering from serious gunshot wounds, as police launched a manhunt for Mr Valentino.

Police appealed to the public for information almost 20 hours later after failing to find Mr Valentino, but warned he was not to be approached as he could be armed and dangerous.

He was eventually arrested and charged on Saturday, four days after the alleged shooting, but police are yet to locate the firearm he is accused of using.

Arresting officers refused bail, choosing instead to hold him in custody until the first available court appearance.

Mr Valentino then faced Armadale Magistrates Court yesterday charged with the shooting and weapons, drugs and driving offences.

However, he was released on bail after police prosecutors made no attempt to deny his application.

In a statement, a WA Police spokesman said that court ordered bail should have been actively opposed.

"That did not happen, and the circumstances behind why will be reviewed," he said.

"The final decision regarding bail rests with the courts and WA Police Force does not comment on the courts' decisions."

Accused man arrested after warrant issued

Late on Tuesday, a warrant was issued for the arrest of Mr Valentino when he failed to appear in Perth Magistrates Court on unrelated charges.

The court was told Mr Valentino had attended the building.

But after becoming aware there was going to be an application to revoke his bail, the court heard he sent text messages to his lawyer, Terry Dobson, saying he was going to hospital because he had chest pains.

Mr Dobson provided the court with the name of the hospital before Chief Magistrate Steven Heath directed that the arrest warrant be issued.

Mr Valentino was arrested soon afterwards.

'Very disappointing' man bailed: Roberts

Speaking yesterday, Police Minister Michelle Roberts said she was very concerned someone accused of Mr Valentino's crimes would not have their bail opposed.

Michelle Roberts says she will raise the matter with the Police Commissioner. ( ABC News: James Carmody )

"This is someone who is alleged to have had an illegal firearm, allegedly committed a serious offence, he's been difficult for the police to locate despite him knowing that the police were after him," she said.

"Something that I will raise with senior police [is] whether or not they had clearly communicated to the prosecutor, but I would have thought it's just logical, given the significant police resource that's been put into capturing him and bringing him into custody.

"It's very disappointing to see him set free in the community again."

Ms Roberts said she would raise the matter with Police Commissioner Chris Dawson.

"I think he will be concerned, like I am, that considerable police resource has been put into his capture and he should be kept in custody in my view," she said.

"I expect police will monitor his movements very closely. I'm yet to see the conditions of his bail, I'm disappointed that he's on bail at all."

"This sounds like a lot of work for police, having him at large in the community."

Premier Mark McGowan said it was very strange there was no attempt to oppose the application.

"I don't have any control over that, the State Government can't influence that, but I would urge the police to monitor him very, very carefully," he said.

"I was surprised and disturbed, and I don't understand why this has happened.

"And we'll seek advice from the police as to why no application to keep him in [custody] was made."