Copyright
Copyright (©) (PROSE: GEOCOMTEX home page, Products, Support Site & FAQs, Recruitment) was a legal right owed to the creator of a work. Violating copyright was illegal. (AUDIO: torchwood_cascade_CDRIP.tor)
When Donna Noble mentioned Murder on the Orient Express to Agatha Christie, she added "Copyright Donna Noble" after the Tenth Doctor reminded her that Christie had yet to write it. She added Miss Marple to the list after inadvertently bringing it up. When the Doctor called out to her, Donna suggested that they could split the copyright before realising that the Doctor had been poisoned. Later, the Doctor shown Donna a copy of Death in the Clouds with a copyright page identifying it as a facsimile edition published in the year 5,000,000,000. (TV: The Unicorn and the Wasp)
In the 82nd century, criminal Marty Mouse had committed breach of copyright. (COMIC: The Shape Shifter)
On Kolpasha, copyright theft was a more serious crime than murder. Madlen Xel suspected the Fourth Doctor and Romana II of attempting to steal Dara Clayd's designs. (COMIC: Victims)
Several pages on the GeoComTex website were labelled as "Copyright © Geocomtex". (PROSE: GEOCOMTEX home page, Products, Support Site & FAQs, Recruitment)