The HTML code for the form could be in a chunk.
Search the template of this resource/page for a tag like [[$...]] (e.g. [[$formContact]]) or check if such a tag exists in the page content.
What is in the content of the Get In Touch Resource? What template or Template variables are there. What’s the name of the Template? Did you then go to the Elements tab and find that Template or use the Search and search for the Template name?
As @halftrainedharry notes, it’s likely that the form and/or the tickboxes are in chunks. That said, it’s also possible that the person who built the site used a template specifically for the contact page and put the contact form into the template.