I am working out how to see if a person is part of Group A and Group B with fundamental authorisation in Apache. Presently I've:

AuthType Basic
AuthName "Log Authors"
AuthUserFile /iweb/s3078033/apache2-secure/auth/user.file
AuthGroupFile /iweb/s3078033/apache2-secure/auth/group.file
Require group admin logger

which only inspections when the user is part of admin OR logger. I have attempted searching throughout the Apache documentation, but am not getting much luck.

Any help could be great.

You've likely already attempted but would placing the Require directive on two lines help?

AuthType Basic
AuthName "Log Authors"
AuthUserFile /iweb/s3078033/apache2-secure/auth/user.file
AuthGroupFile /iweb/s3078033/apache2-secure/auth/group.file
Require group admin
Require group logger

This will work <RequireAll>

Compatibility: Obtainable in Apache 2.3 and then
Requires mod_authz_core

PS: I did not try as I have only Apache 2.2.