Alex Walkinshaw is incorrectly credited as Sgt Dale Smith.
Simon Rouse is credited as playing Spt Jack Meadows in the end credits.
Lucy Speed is incorrectly credited as DC Stevie Moss in the end credits.
On the end title sequence, the transitions between pages of credits appear to change in style between the quick transition used on episodes broadcast between 2007 and 2009, and the longer transitions to and from black featured since 23 July 2009.
Alex Walkinshaw is credited as Insp Smith (and not Insp Dale Smith, as standard).
Micah Balfour is credited as PC Benjamin Gale. Alex Walkinshaw is credited as Insp Dale Smirth.
This episode includes flashbacks to Conviction: Breaking Point.
Sgt Dale Smith's witness statement reveals that he has been a serving police officer for 12 years.
The episode's opening scene is a re-worked version of the previous episode's final scene complete with additional dialogue.
This episode sees the introduction of name tags on the uniformed officers showing the rank and surname.
DS Max Carter tells DI Neil Manson that Uniform have picked up Barry Usher and are bringing him to the station. However, two scenes earlier it is shown that it was TDC Will Fletcher and DC Grace Dasari who actually picked him up.
The image of PC Millie Brown used on her 'missing' poster is one of the publicity photos used for the series.
In the first briefing room scene, a boom microphone can be seen above DS Max Carter.
In the interview scene between DS Max Carter and Curtis Jenson, when DS Carter shows Jenson a series of surveillance photos, their position on the table changes between shots.
Claire Goose is incorrectly credited as playing Sgt Rachel Weston in the end credits.
The memento box, red dress and Sian's diary are all handled by D.C. Masters and D.C. Moss in the interview room without being in evidence bags or being labelled. Later, the diary is returned to Sian despite being a key piece of evidence in her abuse case.
It is mentioned in conversation between Sally and Gina that this episode takes place the day after the events in Lifesaver.
We discover that PC Reg Hollis has resigned from the force. He was last seen in Heat On the Beat.
When briefing the team about how the paedophile network is set up, Supt Faraday says that it is a "peer-to-peer" network. He then draws a diagram showing that all the users are connected to the server/administrator. This is a server-based network. In a peer-to-peer network, all users are connected to one other without the need of server.
In two typographical errors in the end credits, Micah Balfour is credited as playing PC Banjamin Gayle and Julie Hill is credited as Coninuity Co-ordinator.