A BIT DISAPPOINTED WITH THE END

I'M DISAPPOINTED THAT THE GAME ENDS A BIT ABRUPTLY AFTER PLACING ALL THE BUGS IN THE POLICE STATION. I EVEN WENT BACK INTO THE GAME TO MAKE SURE IT WASN'T A GLITCH AND IT TOOK ME BACK TO THE POLICE STATION. ONCE I REPLAYED THE SCENE, THE GAME ENDED AGAIN SO I GUESS THAT'S THE END.

AM I WRONG?? IS THERE MORE??

I am in the police office but can't find all the pieces to activate the lock......going googleyed here !! Can anyone help ??