Understanding Cognizance in CrPC: A Real-world Example Needed

Maine CrPC ka study kar raha hoon, par yeh log Cognizance ka concept toh bahut jatila suna raha hain. Sabhi textbooks keh rahe hain ki yeh police ke kadam se shuru hua phalita hai, lekin kuch aise examples aur real-world scenarios chahiye. Agar aapko pata hai, toh batao, Cognizance ki kya vajah hoti hai, aur isse public ka case saaf lene mein kya faida hota hai? Kya yeh court ke andar hi hua phalita nahin hota? Dhoondh raha hoon isse seekhne ke liye ek simple, easy-to-understand example.