JACKSON Carlaw’s leadership campaign was boosted by a £5000 donation from a former Labour donor who lives in an overseas tax-haven.

Details of the gift from Jersey-based property tycoon Alan Massie were revealed today on the Tory MSP's register of interests. 

Other donations for his succesful bid to replace Ruth Davidson included £5000 from former Scottish Tory treasurer James Stewart and £10000 from Peak Scientific, a Renfrewshire company which makes electric motors, generators and transformers.

The firm run by Robin MacGeachy has previously donated to the Scottish Tories and Better Together. 

Massie, a director of Aberdeen property developers Carlton Rock was previously one of Labour’s top private donors.

He handed the party more than £400,000 between 2011 and 2016, and also made three donations worth a total of £20,000 to an Aberdeen LibDem branch in 2006 and 2007.

The businessman revealed that he had switched to the Tories because Labour could not be “trusted with the Union”.

READ MORE: Carlaw sacks Tory leadership rival in shadow cabinet reshuffle

Last year Massie helped the former Aberdeen South MP Ross Thomson after he found himself in a spot of legal bother after joking that Ian Blackford was a “simple arms dealer”. 

The jibe followed reports that the SNP's Westminster leader had profited from defence deals.

After comments made on social media, Massie picked up a £1800 bill for Thomson to consult a QC.

The Tory subsequently apologised in a private phone call to Blackford and the matter was dropped.

Massie also donated £10,000 to Michael Gove’s unsuccessful campaign for the Tory leadership.