Sly
in short; yes. You are required to keep an accident book under The Social Security (Claims and Payments) Regulations 1979.
All accidents to employees and visitors to your premises should be recorded in the accident book, no matter how small. This way you can identify accident trends and identify minor accidents that could have been more serious and take steps to prevent similar occurrences.
You must ensure that your accident book complies with the Data Protection Act 1998. I suggest to you that on the very rare occasion

you need to make an entry you comply by removing the completed page and file it in the persons confidential and individual file.
You need not use the HSE BI 510 book as long as the one you have complies.
The current edition of the Accident Book BI 510 was issued in May 2003 by the Health and Safety Executive (HSE), which is sponsored by the Department of Work and Pensions (DWP). This publication will allow you to comply with legal requirements to record accidents at work. HSE and DWP has, as a result of subsequent advice and consultation with employers, Trade Unions and others, decided to redesign the Accident Book and publish a new version on the 11th October 2004. This will help organisations overcome any confusion about the requirements of both keeping personal information in confidence and enabling information to be disclosed for preventative purposes.
This book also contains guidance on the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995 and the Health and Safety (First Aid) Regulations 1981.
You probably have this information but if you require the latest edition which complies with the DPA, here it is.Copies of The HSE accident Book (ISBN 0 7176 2603 2), are priced @ £4.75 plus VAT from HSE Books and are available by the following methods:
By post HSE Books, PO Box 1999, Sudbury, Suffolk, United Kingdom. CO10 2WA
By telephone 01787 881165
Or order via their website at
http://www.hsebooks.co.uk/homepage2.html
Hope the above is ok for you Sly?
Take care
Glad