A DETECTIVE today urged pensioners to slam the door in the faces of suspicious callers after two more elderly people were conned.

Two men posing as water board officials tricked their way into homes in Park Farm Road and Mowbray Avenue, both Blackburn.

Det Insp Neil Hunter said people who committed 'distraction' burglaries were usually well-rehearsed which was why they had so much success is deceiving people.

However, he added that if insistent checks were made to see some identification, they would be foiled and the door could be shut on them.

The callers, a short Asian man and a ginger-haired white man in their 30s, called at Park Farm Road at around 3.30pm on Monday.

One knocked on the door and told the 78-year-old homeowner that he was there to switch off her stop-tap.

She requested identification, but he said he had left it in the van and was allowed in.

He went to the kitchen and distracted the woman by asking her to clear a cupboard.

In the meantime, his colleague had entered the home and searched the upstairs for property and cash.

Then the first man made his excuses and left, heading towards Preston Old Road.

In the second incident, the Asian man entered a 70-year-old woman's home through an unlocked door.

When she found him in the kitchen, he said he was there to investigate the water supply.

Again the home owner was distracted and the other man sneaked in to steal cash from an upstairs bedrooms.