The CDs are believed to contain religious warnings, offensive and illegal pornographic material and computer viruses
A man has been arrested in connection with an investigation into computer discs containing offensive material that were left outside homes.
The 35-year-old man from Hemel Hempstead, Hertfordshire, was detained on suspicion of possessing and distributing indecent images.
A number of CDs, covered in symbolic writing, have been found in streets and gardens in Buckinghamshire.
Thames Valley Police has warned people not to open them on their computers.
The force said the arrested man was believed to have delivered discs in the area of Park Place, Plantation Road and Roundwood Road in Amersham and several reports have also been received of discs left in flower boxes and flower beds in Whielden Street in the town and The Spinney and Broad Street in Chesham.
It is understood they may contain religious warnings, offensive and illegal pornographic material and computer viruses.
Officers will be making house-to-house inquiries to retrieve any discs they may have been given.
