Alistair Carmichael is urging folk to “shout loudly” and oppose SNP moves which he says could threaten civil liberties.
Public consultation on Scottish government plans to expand access to an NHS central register to 120 public bodies is due to close tomorrow.
It is feared the move could see each individual assigned with a unique citizen reference number to accompany their data stored on one central database.
The Shetland MP says the plans would pose a “significant intrusion” on rights to privacy. He has highlighted comments from Baroness Shirley Williams which urged care to avoid a “sleepwalk into authoritarianism.”
Mr Carmichael said: “People in the Northern Isles will be alarmed to see a further centralising project from the SNP government in Edinburgh.
“Their ill-conceived proposals to expand access to the NHS central register would pose a significant intrusion on our rights to privacy.”
Successive Westminster governments have had previous form on planning similar legislation which may have threatened to impinge on civil liberties.
The previous Labour government planned to introduce ID cards. Mr Carmichael highlighted proposals since then from the Conservatives to bring in a “Snooper’s Charter”. He said the Lib-Dems had blocked the plans from their coalition partners which threatened to keep records of texts, emails and websites visited.
“I know from my own mailbag that many local people were concerned about the Snooper’s Charter. These plans to establish one massive central database shows that the SNP are no friends of civil liberties, either.”
He urged anyone concerned to make their voice heard by completing the consultation.