[Koha] Report help

[Nicole Engard]

I think this requires some regex magic :) So, if anyone can help me
out that would be great:

How do I create a report for all records that have both of the
following items? A 942|c field that says Photographs and a leader
fields that shows item type as book?

I know that the 94$c is mapped to biblioitems.itemtype - so that's not
the issue, it's the Leader bit I need help with.

Nicole