Thorne Thorne was an Inspector in the Department who sided with Lomax ' s plan for the Korven invasion of Earth . Because of this , he was implanted with Meron DNA . He was governor of Dauntless Prison , and later replaced a disgraced Inspector Drake as the Department ' s head of Public Order . Biography . Some time after the Department was created , the dictator of the British government , Lomax , needed an ally on Earth and came to Thorne . Lomax was secretly plotting the invasion of Earth by his own kind , the Korven . Thorne had a personal policy to be on the winning side . He was implanted with Meron DNA by the Korven , effectively turning him into a Meron . ( TV : " The Eclipse of the Korven " ) Comments made by June Turner suggested that Thorne had a role in the production of the CCPC . ( TV : " The Last Precinct " ) When Starkey and Darius Pike were held in Dauntless Prison while trying to track the Jixen , Thorne personally threw them in a cell with Mr Wiffy . When Inspector June Turner , head of the Alien Activities section , visited the prison , Thorne denied she had any authority . When the Jixen rioted through the prison , Thorne locked himself and June in his office . However when she found out K9 was in the prison she unlocked the door herself . She promised Thorne that he would " never darken these doors again " . As she left , Thorne promised she would pay for this one day . ( TV : " Liberation " ) After Drake almost caused the destruction of humanity by using the Hunger , Lomax decided to transfer Drake to other duties . He gave his job as head of security to Thorne . ( TV : " Black Hunger " ) Thorne set his sights on an Ukkan library card held by the Department . Prisoners were rising in numbers and he wanted to use Ukkan technology to dump them on Urlic , a prison which required " no upkeep , no wardens , no exercise yard , no ping - pong tables , no parole , " forever . He decided the first inmate would be Starkey who was at the Department HQ ' s first careers day . When Starkey saw the card ' s screen in Thorne ' s office , he was sucked into it . An Ukkan librarian , Yssaringintinka , arrived to assist him . June reported to Lomax and warned Thorne that he wanted a good explanation as to why Thorne interfered with alien technology , which she thought insane . K9 and the team tricked Thorne into the card and after he and Starkey groused at each other , they were rescued . ( TV : " Lost Library of Ukko " ) Thorne had several CCPCs implanted with human genetics . ( TV : " Mutant Copper " ) With the help of John , a former Department custodian and vice - president of Greenroom Entertainment he used the last Etydion in a plot to telepathically control children , which backfired . ( TV : " The Custodians " ) Thorne was on station at the Department Mobile HQ when Taphony escaped from her prison . ( TV : " Taphony and the Time Loop " ) Lomax ordered Thorne to acquire K9 ' s regeneration unit . Thorne teamed up with Freddie Maxwell . ( TV : " Robot Gladiators " ) Gryffen told June that he needed to get to the site of the crashed fallen angel in Canada as he could get the Space - Time Manipulator working properly if he acquired the temporal stabiliser . Thorne informed Lomax of this , and interfered with attempts to retrieve components from northern Canada . ( TV : " Angel of the North " ) Thorne was at the Department Mobile HQ when the Last Precinct took over Gryffen Manor . He arrested , Pike , though K9 warned him to treat Pike with the respect he deserved or there would be consequences . ( TV : " The Last Precinct " ) Thorne succeeded in acquiring K9 ' s regeneration unit . ( TV : " Hound of the Korven " ) . K9 determined that Thorne was working with the invaders when he found that he was being used to create a larger portal . When Jorjie branded Thorne a traitor to his entire planet , he revealed that he was implanted with Meron DNA by the Korven . He ordered Trojan to kill them all , starting with K9 . K9 called the Jixen to do battle against the Meron . This caused Trojan ' s Jixen and Meron DNA to conflict . With its final breath , Trojan collapsed on Thorne , crushing him to death . ( TV : " The Eclipse of the Korven " ) Personality . Thorne was ruthless and easily angered . When Thorne discovered his Ukkan library card was stolen , he condemned the CCPC guard to the Mortainian mines for twenty years . ( TV : " Lost Library of Ukko " ) He was stubborn , refusing to obey Yssaringintinka ( TV : " Lost Library of Ukko " ) or give in to John ' s demand for fifty million credits . ( TV : " The Custodians " ) He had little humour , although he made a joke to a frustrated Yssaringintinka . ( TV : " Lost Library of Ukko " ) He noted that a later joke was the only humorous thing he had said in his life , wasted on a department technician who didn ' t get it . ( TV : " The Last Precinct " ) According to Starkey , Thorne ' s breath smelled of " onion s or garlic " . ( TV : " Lost Library of Ukko " )