Thames Valley Police are re-investigating the deaths of eight people dating back to the 1970s.
Cold case detectives say the deaths - which occured in Berkshire, Oxfordshire, and Buckinghamshire - are unrelated.
The operation, named Nightingale, has been established as police have previously been unable to identify the bodies in each case.
More top news
Friday's weather update with Simon Parkin
Thursday night's weather with Simon Parkin
Thursday afternoon's weather with Simon Parkin