A United Kingdom telecommunications forensic engineer said yesterday that telephone records showed that calls were made from three mobile telephones to the Crawle area where police killed four civilians on May 7, 2003.

David Bristo, who has 28 years experience as a forensic engineer, testified in the Kingston Home Circuit Court, yesterday that he did an analysis of the three Digicel mobile phone numbers from source data records to create scheduled call data records on the characteristic and locations of Digicel cell sites.

He testified that he was requested by the Metropolitan Police in London to trace the movements of cell phone calls made on May 7, 2003, at certain times to determine which phone was where, and at what time, to corroborate evidence of movement of persons who had used the phone.

He identified the phones by colour and number. Green phone, with the number 354-3357, which according to previous testimony, was used by Sergeant Ballen, who had driven an unmarked police car with Corporal Ramsay to an office at 15B Homestead Road in East Kingston where a gun was collected in a brown bag and taken to Crawle. It was allegedly handed to one of the six accused policemen, Senior Superintendent Reneto Adams, who the policeman testified planted the gun on one of the four deceased civilians. The phone identified as pink has the number 367-1966, and was used by witness Michael Murray, and the blue phone’s user, number 429-7349, was unnamed in court.

Bristo’s testimony yesterday was given in the form of a PowerPoint presentation of maps on compact discs, showing Digicel cell sites islandwide and maps showing locations identifying cell sites and locations used by the three cell phones between Kingston, Spanish Town, Chapleton and Crawle.

The forensic engineer said the first phone call was made by the blue phone at 4:04 pm, while the pink phone was in the Windward Road area.

He said at 7:16 pm, the user of the pink phone began moving westward from Windward Road and that continued until the user went beyond Spanish Town. A series of calls, he said, were made from the pink phone and at 9:48 pm calls from the green phone were registered near the Bull Head and Chapleton cell sites.

Bisto told the jury that although he could not say at what locations the calls were made, his analysis allowed him to attribute the calls to certain areas where cell sites are served.

Senior Superintendent Adams and five members of his disbanded Crime Management Unit are facing murder charges for the death of the four people, including two women, in Crawle.

The trial continues tomorrow.