Court cuts have forced people to travel more than ten times further to access legal services in some areas, new figures show.
It means victims, witnesses and police officers have to travel almost 30 miles further to access the justice system in some cases.
More than 150 magistrates courts in England in Wales were closed after the coalition government, led by David Cameron, came to power in 2010 - a loss of more than half of the total estate.
A new analysis of House of Commons Library figures found the average distance travelled to some courts has increased by more than 25 miles.
Before it was closed, the average distance travelled by visitors to Torquay Magistrates Court was 3.8 miles.
After it was closed, the average distance travelled to the visitor's next nearest court was 27.3 miles.
The Torquay magistrate’s court building has been on the market since it closed in 2017, with an asking price of £425,000. Even having a nuclear bunker underneath the building has not as yet attracted a buyer.
On average people travelled 7.4 miles to visit Cardigan Magistrates court - which is now a youth hostel - and are now forced to travel more than 30 miles to access justice.
The figures show the average distance travelled has increased by more than 10 miles in 26 local authority areas - and by more than 5 miles in 90 areas.
Torbay saw the largest increase, with an average increase of more than 24 miles.
Distances were calculated “as the crow flies” - and did not account for transport.
Lib Dem leadership contender Layla Moran said: "These figures show that communities are receiving a poorer service as a direct result of the local court closure programme backed by the Tories.
“Solicitors, victims, witnesses, jurors and police officers are all having to travel further to get to court.
“It is literally criminal what has happened to our courts service over the last few years.
When it was first introduced, the government said the court closures programme was intended to pay for improvements to the court system - like digital services - by selling off underused buildings.
Many former magistrates courts have been turned into quirky cafes, flats, supermarkets, hotels and attractions.
Sandwell Magistrate’s Court in the West Midlands was turned into a zombie-themed escape room.
When it closed, the average distance travelled to visit the court increased from 1.75 miles to 7.2 miles to visit the next nearest court.
Ms Moran added: "Courts should only be closed where it can be demonstrated that local communities will not lose out. Greater efficiency cannot always be achieved by a digital by default approach.
“Courts are vital anchors in a community and in some places they were the last piece of the public sector left; so when that goes so do good well paid jobs and any footprint of the state."
