DETECTIVES investigating the "burning body" murder in Wooburn Common have released more CCTV images in a desperate bid for information about the victim's final hours.

But they are not of murdered 23-year-old Beata Bryl - instead police have taken the unusual step of handing out flyers with pictures of commuters who may have been on the same train as her during her final hours.

After Beata's body was discovered on fire by a dog walker in July 2006, police have combed the woods she was found in, quizzed drivers in the area and offered a £10,000 reward for details leading to her killer.

In the investigation's latest step, detectives from Aylesbury's Major Crime Unit have set up a special website with pictures of people they would like to talk to who may have seen Beata before she was killed.

She was last spotted at Leytonstone Tube station in east London on Friday, July 28. The hours between then and when her body was found nearly 60 miles away a day later, remain a mystery. Officers have also put up posters and distributed flyers in English and Polish appealing for information in stations and shops along the central underground line.

Det Sgt Mark Morton said: "This remains a complex and involved investigation.

"We had hoped that some of the people whose images we have now taken the steps of publishing would have made contact with us before now. However, we do appreciate that at the time they were making their journey they did not know that this woman would, in a matter of hours, be found dead in our force area.

"Beata may not have made an impression on them at the time, but we are now hoping that if they see their own image on flyers around the stations, or in the local newspapers, their memories may be jogged back to that evening. Even if they don't think they have any information that could help us, I would ask that they please make contact.

"Hopefully these posters will trigger a memory which will help us bring Beata from Leytonstone to Wooburn Green, and shed light on what happened to her in the final hours of her life."

Detectives stressed the people featured on the website are not being linked to her murder and are being sought to help with their investigations.

If you have any information, visit the website at www.thamesvalley.police.uk/appeal or call Aylesbury police station on 08458 505 505 or anonymously through Crimestoppers on 0800 555 111.