Police continue dig in Louise Bell case

Detectives are spending a fifth day at an Adelaide home hunting for clues to the fate of missing schoolgirl Louise Bell.

Police believe the 10-year-old girl may have been murdered after she was abducted from her bedroom in West Hackham in 1983.

They are re-examining the backyard of another West Hackham home they first searched in 1991 when it belonged to convicted child murderer Dieter Pfennig.

Pfenning, who has not been named as a person of interest in this case, was jailed in 1992 for abducting and murdering a 10-year-old schoolboy whose body was never found.

Police say they have no information to share just yet but they continued their search on Friday.

Ground-penetrating radar equipment has been used to try to find clues to the fate of the girl whose body has never been found.

Raymond John Bolte, formerly known as Raymond Geesing, was sentenced to life imprisonment in 1983 for her murder and abduction.

His conviction was overturned by the Court of Criminal Appeal two years later and he was freed from jail.

He was later jailed again for sexually abusing two sisters over an eight-year period in the 1990s.