The documentary programme Panorama exaggerated claims about health hazards presented by wireless broadband, a BBC consumer affairs unit has found.
Airing in May, Wi-Fi: A Warning Signal explored whether the technology was potentially damaging to children whose schools are equipped with wireless broadband.
An investigation from the BBC's Editorial Complaints Unit (ECU) has now found that while the programme was justified in drawing attention to some of the thornier issues around Wi-Fi, it did not give a fair impression of the scientific community's thinking on the issue of safety.
The investigation followed a complaint from Professor Michael Repacholi, who was featured in the programme, and who questioned whether fears raised over Wi-Fi were justified.
The ECU ruled that by presenting Mr Repacholi as a lone voice, compared with the three other scientists who expressed concern about Wi-Fi, the BBC had misrepresented the consensus of scientific opinion.
A statement from the ECU also said that Professor Repacholi's contribution was presented in a context which suggested to viewers that his scientific" independence was in question, whereas the other scientists were presented uncritically" which "reinforced the misleading impression".