A fifth of Scotland's police stations have either closed down or cut their opening hours in the last five years, the Tories said.
Figures released to the party showed 56 stations across the country have shut since 2007. This includes 26 stations in the Northern Constabulary area and 14 in the Strathclyde Police region.
Meanwhile, a further 23 police stations across the country - 20 of which are in the Lothian and Borders area - have reduced the hours that they are open to the public.
The Conservatives obtained the figures after submitting Freedom of Information requests to all of Scotland's eight police forces. Strathclyde Police - Scotland's largest police force - was unable to say how many stations had scaled back their opening hours
Tory justice spokesman David McLetchie claimed the reduction in both stations and opening hours "did not auger well" for the introduction of a new nationwide police force.
A Scottish Government spokesman said police stations and their opening hours were operational matters to be determined by individual forces.
But Mr McLetchie said: "The SNP has presided over a succession of police station closures."
He accused ministers of "paying lip service to the importance of local policing" as he said: "The Scottish Government has watched on as one in five police stations have closed or had their opening hours significantly reduced. What's more, the largest police force is unable to say which stations have had their hours reduced."
Mr McLetchie continued: "With a single police force around the corner, local stations are all the more significant as they provide an important focal point for towns and villages across the country. Police stations play a vital role in local communities and should not be closed on a whim - the sheer number of these closures over recent years is a worrying trend that should be halted. This does not auger well for the introduction of the single force."
However the Government spokesman said: "Crime in Scotland has fallen to a 37-year low, backed by record numbers of police officers on our streets. The location of police stations is rightly an operational decision for police and not ministers. In England & Wales officer numbers have fallen by almost 10,000 over the two years since March 2010, while in Scotland there have been an additional 1,000 officers since 2007."
