"(1) In this Act 'employee' means an individual who has entered into or works under (or, where the employment has ceased, worked under) a contract of employment. (2) In this Act 'contract of employment' means a contract of service or apprenticeship, whether express or implied, and (if it is express) whether oral or in writing. (3) In this Act 'worker' (except in the phrases 'shop worker' and 'betting worker') means an individual who has entered into or works under (or, where the employment has ceased, worked under) – (a) a contract of employment, or (b) any other contract, whether express or implied and (if it is express) whether oral or in writing, whereby the individual undertakes to do or perform personally any work or services for another party to the contract whose status is not by virtue of the contract that of a client or customer of any profession or business undertaking carried on by the individual; and any reference to a worker's contract shall be construed accordingly."
"In consideration of the fees specified in clause 4, the Director of Music shall provide the services as a musician and perform the other obligations specified in clause 2 subject to clause 3."
"2(a) [He] shall be responsible to the Rector for the care, control and general oversight of all the music and the music team in the Church. (b) [He] shall play the organ and direct the choir at all the ordinary weekly services listed in [Schedule A] [these were the 10.30 Parish Eucharist service on Sundays and the Holy Communion service on the first Sunday of the month]. (c) [He] shall play the organ at Services on Holy Days … listed in [Schedule B] [these were Easter Day and Christmas Day and, if required, Ash Wednesday, Maundy Thursday, Christmas Eve and Patronal and other Holy Days]. (d) [He] shall play the organ at all weddings, funerals and special services not listed in Schedules A and B whenever music is used. (e) [He] shall from time to time at the request of the Rector attend meetings of the Council and its sub-committees where music and the liturgy are to be discussed. (f) [He] shall devote adequate time to the preparation and planning of music. (g) [He] shall oversee the supervision of the care and maintenance of the Church's organ and other musical instruments."
"3. [He] shall be entitled to delegate some or all of the above duties to a competent assistant or deputy at his discretion, subject to the approval of the Rector, not to be unreasonably withheld."
"7 (a) [He] shall be responsible for the membership of the choir, subject to the approval of the Rector. (b) [He] shall be solely responsible for the training of the choir and shall arrange adequate rehearsals for this purpose."
"9. [He] shall have the sole right to play and direct the choir at all services at the Church whenever music is requested. [He] may, at his discretion, permit some other competent person to play at any such service but in that event [he] shall be entitled to receive the fee as specified in clause 4 above."
" … That Canon provides (paragraph 1) that, generally speaking, powers to appoint, and terminate the appointment of, Directors of Music are exercisable by the Minister with the agreement of the Church Council. Paragraph 2 states that the Minister must heed and consider the advice of the Director of Music, but retains ultimate responsibility for the choice of music."
"… The power to delegate was not exceptional and was not the subject of any variation. Nor was it a sham. There was no mutuality of obligation."
"… On the face of it an express entitlement to five weeks' holiday might be thought to assist the Claimant's arguments but the true meaning and purpose of the provision is, we think, clear from the final sentence, which specifies that it is for [the Council] to meet the costs of supplying a deputy during those weeks of absence. This obligation frees the Claimant from the burden which, throughout the rest of the year falls upon him to arrange a deputy whenever he is unable or unwilling to attend the Church himself."
"A contract of service exists if these three conditions are fulfilled. (i) The servant agrees that, in consideration of a wage or other remuneration, he will provide his own work and skill in the performance of some service for his master. (ii) He agrees, expressly or impliedly, that in the performance of that service he will be subject to the other's control in a sufficient degree to make that other master. (iii) The other provisions of the contract are consistent with its being a contract of service. I need say little about (i) and (ii). As to (i). There must be a wage or other remuneration. Otherwise there will be no consideration, and without consideration no contract of any kind. The servant must be obliged to provide his own work and skill. Freedom to do a job either by one's own hands or by another's is inconsistent with a contract of service, though a limited or occasional power of delegation may not be: see Atiyah's Vicarious Liability in the Law of Torts (1967) pp. 59 to 61 and the cases cited by him. As to (ii). Control includes the power of deciding the thing to be done, the way in which it shall be done, the means to be employed in doing it, the time when and the place where it shall be done. All these aspects of control must be considered in deciding whether the right exists in a sufficient degree to make one party the master and the other his servant. The right need not be unrestricted. 'What matters is lawful authority to command so far as there is scope for it. And there must always be some room for it, if only in incidental or collateral matters.' – Zuijs v. Wirth Brothers Proprietary, Ltd.(1955) 93 CLR 561 , 571 '"
"Next came a provision to which great importance was attached, as will later appear; the tribunal held: 'If for any reason, one of the applicants was unable to take a class, she would contact a replacement from the register of coaches maintained by the respondents, and arrange for her class to be covered by a member on the register.' It is to be noted that it was the applicant who was enabled to select the replacement coach rather than the council, but that the substitute had to come from the council's list. The arrangement for the replacement was made by the applicant, not the council. It is to be noted, too, that this provision for substitution would only be available where an applicant was 'unable' to take a class, albeit that the inability could be 'for any reason'."
"13. The subcontractor is free to employ at his own cost whatever suitably trained additional labour which may be necessary to fulfil the requirements of the agreement. Where the subcontractor is unable to provide the services the subcontractor may provide an alternative worker to undertake the services but only having first obtained the express approval of the contractor."
"(2) Although the second sentence does indeed allow the subcontractor to provide a substitute, it only does so 'where [he] is unable to provide the services'. Again, the exact scope of that phrase may be somewhat vague, but we cannot construe it as allowing him to provide a substitute whenever he chooses: if that were the intention, those words would be simply redundant. (3) A substitute worker may only be supplied with the prior approval of the contractor. No doubt there is scope for argument as to the extent of the contractor's entitlement to withhold approval: perhaps he would only be entitled to do so on reasonable grounds. But that does not seem to us to mean that the contract cannot be regarded as a contract to supply personal services."
"… it seems reasonably clear that an essential feature of a contract of service is the performance of at least part of the work by the servant himself. If, therefore, the person in question is entitled to delegate the entire performance of the work to another, it is thought that this would be conclusive against the contract being a contract of service. …"
"5.2 Subject to clause 9.2 below the HDA is not required to [discharge his/her operational responsibilities] personally and in the event that he/she does not want to do so for any reason (including holiday) or is unable to do so for any reason (including illness) the HDA will ensure that he/she engages suitable people to ensure that his/her obligations under this agreement are fully complied with."