Are they open to pressure from within Government? Are they open to external pressure and if so, from whom?

Things to think about in your letter:
Who do you write to? Ask yourself the below questions to help work out who you should be targeting.
Who has the power to make the change you are seeking?
What is their current position on the issue?
Are they open to pressure from within Government? Are they open to external pressure and if so, from whom?
What are the best ways to influence them?
You may decide to write to secondary rather than the primary target i.e. not the person who has the decision-making power but someone else who can influence them. For example, you may write to an advisor or Member of Parliament asking them in turn to influence their Minister.