For the record
which is used to emphasize a point that you're making so that the person you're speaking to takes notice. Example: And, for the record, he would be the last person I'd ask.
You can also used this expression to show that you want what you're saying to be officially written down and remembered. Example: Just for the record I would like to clarify something my colleague said earlier.
There's also another similar expression but very different in meaning off the record. If you tell somebody something off the record it isn't official yet and you don't want them to repeat it publicly. Example: Strictly off the record, some members of staff will have to be made redundant.