Q695: I received a summons/conditional offer for a traffic offence through the post and lost it, what do I do?
You need to contact the Camera Unit of the Central Ticket Office (sometimes called Central Process Bureau or similar) of the force concerned to ask for a copy and in most circumstances you will be issued with a copy document.
If it was a conditional offer and you have failed to pay or contact the Camera Unit, you may be issued with a summons to attend court.
If it was a summons you must contact the court in question as a failure to appear at court could lead to a warrant for your arrest being issued.
Do not delay. There are time limits on these processes and they can get more expensive (or even lead to your arrest) if you do nothing.