Hello! I am interested in writing a story that could go one of two ways. The first one is about a detective. More specifically, a police procedural and as such I would like to do some research on some things, such as: Poisons, Guns, Police procedure, Law, Police/detective training and selection, Police/detective techniques, Probably others I'm forgetting/don't know about now. Otherwise, if I decide to write a story that involves terrorism, I'd like to learn more about: Explosives (duh), Police protocol for terrorism situations, Special forces techniques, procedures and training, Probably others I'm forgetting/don't know about now. First of all, I know I could find all of this online, but that would take a lot of time and I would have to read a bunch of stuff I don't care about. I would probably miss a lot as well. So, I imagine I'm not the only one that ever wanted to do this, so the question: Is there a book oriented to writes that want to start up in this genres, such as this: https://www.amazon.com/Deadly-Doses-Writers-Poisons-Howdunit/dp/0898793718, but maybe a bit more abarcative that would include a few more topics? Anything counts. Thanks in advance.