Tartan Transport PLC is an expanding bus company. Business has been so good that Tartan Transport PLC has had no option but to take on a number of new drivers to cope with demand for its services. Cameron was one of the new drivers given work by the company. The company has a dress code for all drivers with which Cameron is expected to comply. Since his involvement with the company, which began over the last year, Cameron has not had the benefit of regular working patterns. On the other hand, however, he is perfectly free to refuse offers of work from the company and there is nothing in his arrangement with Tartan Transport PLC which prevents him from working for any other company or business. Cameron continues to use his own accountant to calculate the income tax owed from all the various jobs that he is doing. From time to time, Cameron will accept jobs from Tartan Transport PLC, but he will send his sister, Rona, a qualified bus driver, in his place should he be unavailable for driving duties. The company is perfectly happy with this arrangement.

With reference to question 1 above, what kind of contract does Cameron have with Tartan PLC? Give reasons for your answer.