Emma works for a publishing company which is based in Cambridge. Emma has a fixed-term managing editor contract and has a defined list of tasks that she has to carry out during that time. Her contract states that she is responsible for her own tax and National Insurance contributions. There is no mention of hours that need to be worked nor clauses concerning holidays or sick leave in the contract. On the basis of these facts and with reference to the relevant case law and statutory provisions, discuss Emma's employment status.