Every council must appoint an officer of the council to be the RO for any elections of councillors to the council. By virtue of being the local government RO, you will also act as CRO for the Scottish Parliament election.
Insurance
You are personally liable for the conduct of the election in your constituency. You should ensure that you have appropriate insurance cover and that it is up to date. If you are also the RRO, you should check to ensure that you have insurance cover for your RRO responsibilities too and that it is up to date. You should be prepared to demonstrate robust planning and decision-making processes in the event of any challenge to the election and a claim against this cover.
The team at your council dealing with insurance may be able to help determine what existing cover is in place and available, and to provide advice as to whether it should be extended.