checkbox as required field in Leads module

hi All,

I am trying to ensure that checkbox is a required field in leads module. basically its a GDPR privacy statement and we need to make sure that checkbox is checked before submitting a lead in CRM. This needs to be cascaded into the partner portal as well. There is no option to make a checkbox mandatory via Studio, any recommendation on how this could be achieved would be great.

Thanks,

K

Checkbox studio options