An illegal Mexican migrant who has already been deported twice and was jailed for his fifth drink driving conviction will cost Colorado taxpayers a further $1million until his next deportation

Pedro Reynaldo Tun admitted he has been in the US illegally since he was 13 and was able to pay 'coyotes' to smuggle him back across the border following his earlier deportations.

During one drink-driving episode he killed a passenger in his car.

Pedro Reynaldo Tun has been convicted of drink driving five times and deported twice

Tun was jailed for 15 and a half years for his latest drink driving conviction in Colorado

Last month, a judge in Denver jailed Tun for the maximum 15-and-a-half years, but with good behavior, he could be out in around five.

Arapahoe County District Attorney's office claims it will cost approximately $1million to feed and house Tun in jail

CBS 4 in Colorado interviewed Tun while in jail where he tried to explain his repeat offending with the aid of an interpreter.

He said: 'I'm here alone and I like to drink.'

Seeking sympathy for one of his convictions, he claimed: 'I wasn't driving drunk. I was just over the limit.'

On his two successful bids to return to the US, Tun admitted he paid 'coyotes' to smuggle him across the border. After his first deportation he spent $8,000, while his second attempt was $5,000.

He said in his experience, Donald Trump's planned wall along the border is bound to fail claiming the human traffickers will simply charge more money for the inconvenience it poses.

District Attorney George Brauchler, Tun's case is not unique.

He said: 'There’s no more patience or forgiveness. People get outraged and they are entitled to get outraged. Does anybody think he’s not coming back? Why would you have any hope of that?'

He added: 'If someone wants to come into our country from the southern border they just do. There’s very little we can do to dissuade or stop them.'