Pia, a bold actress living on the top floor of a plush condominium in Makati City, sunbathed naked at its penthouse every Sunday morning. She was unaware that the business executives holding office at the adjoining tall buildings reported to office every Sunday morning and, with the use of powerful binoculars, kept on gazing at her while she sunbathed. Eventually, her sunbathing became the talk of the town.

(a) What crime, if any, did Pia commit? Explain.
(b) What crime, if any, did the business executives commit? Explain. (1996 BAR)