Even in criminal cases: > the defense lawyer may not lie to the judge or jury by specifically stating that the defendant did not do something the lawyer knows

Even in criminal cases: > the defense lawyer may not lie to the judge or jury by specifically stating that the defendant did not do something the lawyer knows the defendant did do. [source: https://www.nolo.com/legal-encyclopedia/representing-client-whom-the-lawyer-thinks-is-guilty.html https://www.nolo.com/legal-encyclopedia/representing-client-...]