Two groups of people rely on the accuracy and rigour of your RIS.
The first are the decision makers, for whom a balanced assessment of the options is critical.
The second are your stakeholders, who have a right to accurate, timely, accessible information about government decisions affecting them.
Avoid jargon, acronyms, needlessly complex language and waffle.
The RIS is a summary document. Be precise and economical in your language. Include only what is relevant, making sure the depth of your analysis is commensurate with the importance of the issue you are analysing.
Be measured and prudent in your arguments and assertions.
Do not pass off opinion as fact; check the accuracy of every claim and where the facts may be inconclusive, say so.
Make your document easy to navigate by ensuring sections are clearly marked and there is a logical flow to your writing.
Keep in mind your RIS will ultimately be read by decision makers, stakeholders, the media and general public.