They can request access by clicking on the CivicDocs defense attorneys link at the bottom of your sites sign in page (ex:https://beta.civiceye.com/signin):
You can also direct them to the defense sign on page by adding "/prodocs/signin" after your sites url. (ex:https://beta.civiceye.com/prodocs/signin)
From here the defense attorney can request access at the bottom of the page to fill out a request form:
Once a site admin approves the request the defense user will receive an email notification with sign in details: