Problem - Corroboratory evidence inspected by an auditor in the course of an audit includes:

a) a letter from the bank confirming the company's bank balance, which is sent directly to the auditor

b) the creditor's monthly statement from the company's files

c) copies of sales invoices sent to customers from the company's files

d) delivery notes, sent with goods, receipted/signed by customers and held in the company's office

e) title deeds for the company's properties, which are held at the company's safe deposit box at the bank

f) a bank statement from the client's files

g) material requisitions filed in a storeroom

h) a board minute authorising purchase of new equipment.

Required: For each item, discuss and comment on its reliability as audit evidence. Is the evidence highly reliable, reliable or of low reliability?