Knowing the location, and resigned to performing a surreptitious break-in, it was time to recce the undertakers. It wouldn't be easy, that was for sure. The premises were quite substantial, but were in a parade of shops on the continuously busy Finchley Road, the main northern exit route out of Central London.
Entry from the front was therefore impossible. It would have to be approached from the rear. Fortunately, given the nature of the business, a service road provided access for a fleet of hearses in a compound at the back.
Access relatively easy. 24hour lighting a significant problem.