public ICollection <Customer> FindCustomersByName(string name)
        {
            ICollection <Customer> customersFromRepository =
                repository.FindByCriteria <Customer>(Expression.Eq("Name", name));
            List <Customer> approvedCustomers = new List <Customer>();

            foreach (Customer customer in customersFromRepository)
            {
                if (authorization.IsAllowed(customer, "View") == false)
                {
                    continue;
                }
                auditor.ReadCustomer(customer);
                approvedCustomers.Add(customer);
            }
            return(approvedCustomers);
        }