The SNP has warned Scottish Labour not to interfere in the race to succeed Nicola Sturgeon.
Jackie Baillie said earlier this week that "murky internal politics" could not be allowed to derail the process to find the next First Minister.
The Labour health spokeswoman wrote to senior Nationalists to claim their party had a "long track record of secrecy and cover-up" which raised questions about their "ability to conduct this race fairly and honestly".