Beyond a shadow of a doubt...

Meaning

Absolutely certainly; without any doubt.

Examples

• John: 'The DNA evidence is irrefutable.'<br>
• Alice: '<b>Beyond a shadow of a doubt</b>, he's the culprit.'
• John: '<b>Beyond a shadow of a doubt</b>, she's telling the truth.'
• Alice: 'The witness testimony is consistent and credible.'<br>