by Brian Crow: "Unable to locate" means that the drawee bank does not have an account that matches the information on the check. It is "unable to locate" an account.
by Ken Golliher: It's possible that your prosecutor should get off her duff and do her own homework; e.g. call the drawee bank and ask them what they meant. In all probability the checks are fraudulent; the bank has no account in this name or number.