[Samba] limit access to folder without mapping a new drive

[c cc]

Hi,
Under our file structure, we have /files/all/departments/. We want
everyone to have access to all the folders under files, but there are
couple of folders in the departments directory/folder that need to
limit access to only one person. Is it possible without mapping a new
drive? Thanks!

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[files]
   comment = files
#  hosts allow =
    path = /files
    public = yes
    writable = yes
    printable = no
    create mask = 0644
    directory mask = 0755
    available = yes
    guest only = no
    browseable = yes
    only user = no