Dear Mr. Timothy,
We wish to inform you that our check book containing 15 blank checks was stolen from our office last night together with some petty cash. We have reported the matter to the police and they are investigating what they believe to be a burglary case. We enclose a copy of our police report.
Please do not make any payment for any of the above checks (No. 23456 to 23460) if or when it is presented to you. Inform us if such an incident should occur so that we can get the police on it. If you wish to contact the police directly, you can call Inspector Joe at 123-3496702-098.