Carroll and Appleton (2001) at Oxford Brookes University have provided a thorough guidebook on good practise for preventing plagiarism. In summary, she suggests four key activities for prevention:

• Making it difficult to meet the assessment requirement by using something that already exists.
• Tracking/valuing the student’s process when producing the artifact
• Using a design strategy where cheating on one aspect means losing out on the next
• Planning in authentication exercises

Robert Harris (2004) provides some useful approaches to a strategy of prevention of plagiarism

1. Make the assignment clear.
2. Provide a list of specific topics and require students to choose one of them.
3. Require specific components in the paper.
4. Require process steps for the paper
5. Require oral reports of student papers.
6. Have students include an annotated bibliography.
7. Require most references to be up-to-date.
8. Require a metalearning essay.

Free websites for detection of plagiarism (sometimes useful to direct students to these) are listed at 'Plagiarism Stoppers'.