The Charity Commission notes that the Guidance “explains trustees’ duty to prevent their charity being used to promote extremist views or terrorist ideology.  The toolkit also suggests steps trustees can take to minimise risks associated with particular activities, such as organising public events and debates and circulating information.  It is aimed in particular at charities that host regular events involving external speakers, and those with educational purposes that distribute material and information. Examples include charitable think tanks and debating societies, students’ unions, schools, colleges and universities and religious charities.”

Here is a link to the UK guidance:

Chapter 5: Protecting Charities from abuse for extremist purposes and managing the risks at events and in activities – guidance for trustees
http://www.charitycommission.gov.uk/Our_regulatory_activity/Counter_terrorism_work/compliance_toolkit_5.aspx