They often have complex characters. The heroes are not always the traditional, morally upright ones. They might have a code of their own that is different from the general society's norms. For example, they could be involved in illegal activities but still have a sense of loyalty and justice within their own group.
There is also 'Kaifi Azmi's work which often delved into the lives of people in tough situations, including those with elements of the gangster world. His writings show the human side of such characters, whether they are the so - called heroes or the ones on the other side of the law.
The Gangster Squad is not based on a true story. It's a work of imagination by the filmmakers to present an engaging crime drama. The characters and events are made up to captivate the audience.