Eddie Teare is appealing for help from the public with a police investigation
The Treasury Minister is offering a cash reward for information about serious threats he has received.
A police investigation into the letters sent to Eddie Teare is continuing.
Reports of them first surfaced in December last year.
The Northern Neighbourhood Policing Team has published a couple of passages from the letters, hoping members of the public will be able to help identify the handwriting.
Inspector Andy Kneen told Manx Radio more: