The PCC found that an article headlined "Teacher found electrocuted", which ran in the Wigan Evening Post on 25 May and the Wigan Observer four days later, breached clause five of the PCC code, which deals with intrusion into grief or shock. The article contained details of how the suicide occurred.
Clause five of the PCC's code was amended in 2006 after Samaritans submitted information about the impact of media coverage on the methods and rates of suicide.
Dominic Rudd, chief executive of the charity, said: "Samaritans played a part in the introduction of the new rule and I am pleased to see that the PCC has upheld the complaint for the reason the new clause was established."