Credit checks any bank employess out there? pretty plz ?

Is it true a bank will only credit check u if ur applying for loans, credit cards etc i really want to open a new account with no borrowing facilites. a card to use at cashpoint. i have been told my credit score is nice but i have adverse credit history. it confuses me how it all works. i moved house and a company called leaseguard did a check, mine came back fine but my partner showed up a ccj. is credit rating and credit score the same?
Answer
A credit check will always be done, to ensure you are who you say you are, its a legal requirement, that is why on the application you may be asked for a previous address as it is a guaranteed way of checking your address history and any associations that you may have with anybody.another reason for this credit check is you will still be able to set up direct debits, which if they are not paid can incur charges which if you do a runner the bank will be left with.