London: Kate McCann apparently criticises holiday company Mark Warner over her daughter's disappearance in a new television documentary.

Sources close to the makers of the programme said yesterday a tearful Kate had spoken of how she wanted to employ a baby-listening service for Madeleine but had found none was available at the resort in Praia da Luz on the Algarve. She then chose to check on her daughter every 30 minutes.

The toddler vanished from her room while her parents were dining at a nearby tapas bar.

In raising the absence of a monitoring service, Kate, 40, appears to blame Mark Warner, the company that specialises in family holidays.

The two-hour documentary was slated to air on ITV on April 30. According to a television insider, Kate is understood to say: "Of course we wanted to use a baby-listening service but there wasn't one at the Ocean Club."

Very emotional

One source close to the makers of the documentary added: "She is very emotional. She breaks down on camera at different points during the filming. It clearly shows her as a caring mother who misses her daughter very much. This is a woman grieving and is clearly more emotional than she has ever been."

Sources point out that the McCanns, while questioning Mark Warner's lack of a listening service, lay the main blame with the kidnapper.

Emma Loach, director of the documentary and daughter of film-maker Ken Loach, is understood to be convinced of the couple's innocence.

A spokesman for Mark Warner said it had been contacted by the filmmakers. He said the Ocean Club had never had a listening service at Praia da Luz because the resort was too spread out across the village. Instead parents could use a drop-in creche.

Meanwhile, disgraced former chief investigator Goncalo Amaral is to quit the Portuguese police. Amaral, 48, will retire less than a year after being removed from the McCann case.