If you are employing staff for the first time then you may find this article from our friends at Edward Connor Solicitors helpful in thinking through some key questions: Taking on staff for the first time
If your church has any paid employees, you will need some basic policies covering things such as remuneration and sickness absence. This may be covered in their employment contract. A pack containing the employment policies you need can be purchased from Edward Connor Solicitors together with support to implement them: Employment Pack
If you do not have any paid employees but have voluntary workers (those who work for the church under a contract but who are not paid), then Edward Connor Solicitors' pack for voluntary workers may be helpful for you: Voluntary Worker Pack