Often, they are highly realistic. They use real - life events as a foundation, so the storylines tend to be more believable. For example, the settings and the way the investigations are carried out are modeled on how it really happened.
One example is 'Manhunt'. It's a gripping ITV crime drama based on true events. The show delves into the real - life investigations of a serial killer. It's known for its intense portrayal of the police work and the psychological aspects of the case.
These dramas usually have strong research behind them. For example, in a drama about a historical event, they would have done extensive research on the time period, the people involved, and the sequence of events. This results in a more detailed and accurate portrayal. Also, they tend to attract a wide range of audiences, from those interested in the particular event it's based on to those who just enjoy a well - told story. They can also be educational in a way, as they can inform the viewers about events or people they might not have known about before.
Authenticity. Since they are based on true stories, they often strive to be as accurate as possible in terms of the events, locations, and even the way people speak. For example, in dramas about historical events, they will use period - appropriate language and costumes.