145(10) An accused against whom a certificate described in subsection (9) is produced may, with leave of the court, require the attendance of the person making the certificate for the purposes of cross-examination.
Many offences under the Criminal Code of Canada have "lesser and included offences." A classic example of this is the offence of sexual assault, which has as a "lesser and included offence", a charge of assault simpliciter. The difference between a conviction on a sexual assault, and a simple assault can be immense, particularly on sentence. In this case, Mr. Lewandowski was able to have a charge reduced at the preliminary inquiry stage, sparing the client from having to register as a sex offender.