A consultant pathologist told a manslaughter trial today that it was extremely dangerous to leave a child under the age of four unattended in a bath.

Mold Crown Court was told that the cause of death of baby Rosie was "consistent with drowning".

Dr Brian Rodgers was giving evidence on the fourth day of the trial of Sarah Elizabeth Morris.

He said that in the absence of some of the classic features of drowning, he had given the cause of death as being consistent with drowning, taking into account the circumstances in which she was found.

The mother had tried CPR together with passers-by and paramedics and she had been treated in hospital.

She had been in cardiac arrest when she arrived at Glan Clwyd Hospital in Bodelwyddan.

A fair amount of work had been carried out before he saw the body to conduct the post mortem, he said.

He based his conclusion on the pathological findings - including the lungs being heavier than would be expected- and the circumstances of where the infant was found.

There was some evidence of gastric content in the air waves.

It was extremely difficult to determine the time of death, he said.

Asked by prosecuting barrister Oliver Saxby, QC, how long it would take for a baby of Rosie's size to drown, he said that was a difficult area but said it could be within a matter of minutes.

When asked how much water was required for a baby to drown, he said it did not require much water at all.

"It does not take much water to cause serious problems to an infant in a very short period of time," he said.

"Infants can drown in a very low level of water. You only need a matter of inches."

"It does not take deep water for an infant to drown."

Dr Rodgers said that it was "extremely dangerous" to leave any infant under the age of four unattended in a bath for any period of time.

To leave a baby in a bath for five minutes or even less was long enough for a baby to drown.

Morris, 35, of High Street in Bagillt, denies the gross negligence manslaughter of one year old Rosie, who earlier had been playing and splashing about in the bath with her twin at Greenfield.

She also denied an alternative child cruelty charge dating back to July 2015.

The prosecution say she was on the phone with her partner for some 48 minutes and while she had checked, Rosie was not supervised at all times.

Morris told police how she found her blue in the bath, tried CPR and rang a friend to try and get help before running out into the street screaming for help.

The prosecution closed its case today and the defence case is expected to start on Monday morning.

The trial, before Mr Justice Picken, is proceeding.