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eGuide - Technical Description


Details concerning accessibility can be found here can be found here


This eGuide web app uses hand coded HTML5 markup and CSS3 layout.

A small amount of javascript (ECMA-262 v3 1999) is used :-

  1. to initiate and run the service worker,
  2. to permit smooth scrolling between links and anchors on the same page,
  3. to add a jscript javascript library.

The eGuide will still function if javascript is disabled however the guide will not load in the off-line cache (service worker will be disabled) and smooth scrolling will no longer function.

If CSS is disabled the text will display correctly and navigation remains enabled however the pages may no longer auto resize to fit the screen.



Use is made of HTML5 semantics as well as additional aria roles and access keys in order to enable assistive access for keyboard users and those with impaired vision. All modern browsers contain additional accessibility features which compliment those incorporated in this eGuide.


W3C Standards

The guide complies wherever possible with W3C-AAA standards.


Compliance Testing

This guide has been tested for compliance with the above standards. Most symbols used within the guide are web-font icons not images - automated colour tests give false contrast errors on the web fonts despite the colours used complying with, and in most cases exceeding, the standard.




The eGuide is responsive and will adjust layout to suit a wide variety of screens from smart-phones to tablets and desktops.



Our standard licence is based on usage by an individual on all his or her devices. In other words the licence permits a single person to access the eGuide on a desktop as well as a smart phone or tablet.

A multi-user licence is available for purchase by organisations. Licences are issued and discounts provided based upon the total number of individual users permitted access to the guide. It is not based on the number of simultaneous users. This also means that a force or company can purchase a licence for an individual or group of individuals for use on their own devices as well as or instead of the force or company's equipment.

Because the guide uses cached data it is not possible for us to provide any meaningful usage statistics.


Minimum Requirements

This eGuide will work on older versions of browsers (IE v8 upwards) however in order to get the best out of the guide we recommend updating to one which fully supports HTML5.

We recommend Firefox or Chrome.


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Technical Data