RICHARD LEONARD will today pledge to introduce a “Mary Barbour law” to lower rents and crack down on exploitative landlords.

In a speech to his party’s conference in Dundee, the Scottish Labour leader will advocate a link between rent and earnings enshrined in law.

Fair rents would also be enforced through a “new points-based system” and tenants would be allowed to challenge “unfair” rents or claim for a reduction.