Acknowledgements

Except for third party materials and otherwise stated (see terms and conditions), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Course image: IQRemix in Flickr made available under Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence.

Grateful acknowledgement is made to the following sources for permission to reproduce material within this book.

Roger Dettmer, 'Safety in Numbers', IEE Review, vol. 50, no. 11, Nov 2004.

Hogge B., (2004) 'Closer to the State'. The Guardian Newspaper issued 2 December 2004.

Figure 12 By permission of Lomak International

Figure 13 By permission of Lomak International

Don't miss out:

If reading this text has inspired you to learn more, you may be interested in joining the millions of people who discover our free learning resources and qualifications by visiting The Open University - www.open.edu/openlearn/free-courses