Dying Declaration - The Unspoken Clause

Mere textbook ne mujhe yeh samjhaya ki dying declaration mein koi aadhaatmy hai, aur bas witness ko kuchh batna padta hai. Lekin internship karte hue ek case mein, maine dekha ki agar dying declaration ke witnesses ko bhi suspect hote hain, toh kya hota hai? Tabhi toh mujhe yeh maloom hua ki Evidence Act, 1872 ke Section 32 me yeh clause hain ki agar witnesses ko bhi ghatna ke liye shamiyaan hoti hain, toh unki dying declaration ko bhi proof ke roop mein nahi uthaya jayega. Yeh clause kafi important hai, aur textbook me to nahi aaya tha.