Arbsafe is an online tool aimed primarily at professional tree workers. Its aim is to provide the end user with a facility to create an online database of all their equipment(chainsaws,woodchippers,etc) along with serial numbers for the purpose of reporting theft. Arbsafe also publicly lists any tools which have been stolen, enabling the end user to cross reference serial numbers against the database when purchasing used equipment. The overall aim of the site is to add another layer of security to the end users tools they use for their business.
In addition to being used on site. The logo may also be incorporated into security stickers at some point for people to place on their equipment. Ideally these stickers would be circular. An emblem style logo would work for this. This should be instantly obvious as to what it signifys, something representing security, or a warning. It may be that the logo needs to be 2 parts, that can work independantly of each other, for example please see the treeshirtz logos attached to see what I mean.