Can any of the LEOs here comment on the infamous

"I started to write you a ticket. I can't tear it up, but I have to write you one for SOMETHING now that I've started filling it out..."

FACT of FICTION ?

IF an officer starts writing a ticket, does heHAVE to finish it? Can he 'tear it up' , 'void' it, or just not finish it ?

Or does he HAVE to finsih it, but not necessarily with the original charges ?