"Margo MacDonald MSP, who says she believes there are undercover agents operating in the SNP, told MI5 chief Andrew Parker that his staff should only be used to thwart criminal and terrorist acts, rather than
“Margo MacDonald MSP, who says she believes there are undercover agents operating in the SNP, told MI5 chief Andrew Parker that his staff should only be used to thwart criminal and terrorist acts, rather than engage in dirty tricks against those who support Scottish independence.”
See the full report: MI5 spies told: stay out of referendum: A senior Nationalist has written to the head of the UK’s Security Service and asked for an assurance that MI5 spies will not interfere in the independence referendum (Herald Scotland, link)