The Text
The privacy of citizens, their homes, correspondence, telephone conversations and telegraphic communications is hereby guaranteed and protected.
Source · Constitution of the Federal Republic of Nigeria, 1999, as amended · §37
All sections in Chapter IV — Fundamental Rights
Methodology
Tier 1 · primary
Courts. Gazettes. National archives.
Tier 2 · corroborating
OCCRP. HRW. BudgIT. TheCable.
Redline
Wikipedia is never a source.