Channel 4's Benefits Street will be the subject of an investigation by Ofcom.
The broadcasting watchdog will investigate whether the documentary series broke broadcasting guidelines in its depiction of possible crimes.
Ofcom will also probe whether the series caused offence by misleading viewers. Additionally, it will look at whether enough was done to protect under-18s who appeared on the show.
Benefits Street attracted nearly 1,800 complaints during the course of its run, with 960 made to Ofcom and 800 to Channel 4 directly.
An Ofcom spokeswoman commented: "Following the conclusion of Benefits Street, Ofcom can confirm that it has launched an investigation into the series."
Over 4 million viewers tuned in to see the conclusion of the five-part series earlier this month, with a second series set to go into production in a new location away from Birmingham's James Turner Street.
A Channel 4 spokesperson said: "The first series ignited an important debate about the welfare system, and we are interested in seeing if we can revisit this through the experiences of residents of a street in a different part of Britain."
