An applicant to an organization was employed to begin work on May 1, 2021. He is unsure about what to expect as documentation of the contract from the company since the month has ended. He also noticed that there is a deduction for the staff union on his payslip. This newly employed worker needs your help. 

a. Explain all the documentation he should expect to constitute his contract and why?

b. What protection does he enjoy under Act 651 to protect his pay from any unauthorized deductions? What deductions should he expect? Advise him on what to do.