Let me clarify a couple of things, they can't request to be tried together they are two individuals charged with a separate charge. They can ask to speak to the prosecutor and it may be dismissed there. As for "seeing separate readings on the radar gun" the officer has no requirement to show you the speed on the gun. The gun doesn't "log" readings so only the last reading recorded is visible.
Disclosure is your best defence, see what his notes state. Unless his notes state that he tagged your friends bike then tagged your bike YOU have a viable defence, your friend doesn't. Also keep in mind if the crown doesn't want to deal and you go to trial you will go at the full speed as recorded not the 15 over speed, (That is directed more to your friend then you, because I think you have a good chance of winning).
As for the Video, I wouldn't play the card above the video is on a timed loop etc, the crown may ask you to demonstrate how you set the camera to the setting as they couldn't find it anywhere in the manual. Then when you admit there is no such setting then they look at the JP and say if you have misled the court about this are you also misleading the court about your speed? The video will simply show the officer at a distance you likely can't see that much detail as to what he/she is doing, (IE can you show they only pointed the radar gun once)? But let's say it shows him pointing the gun once and pulling you and your friend over. Now the crown has video evidence that he/she recorded the bike speed, and stopped the correct vehicle. So your friend no longer has a defence. Then they go to your trial, they play the video say it shows you basically traveling at the same distance from your friends bike. The crown then says "Your honor the front bike in this video was charged and convicted of speeding we can clearly see that the defendant was traveling at a speed VERY close to matching that bike, as they remained constant in the distance between the bikes, therefore I submit both bikes were indeed speeding as charged. Or the crown says, was your friend convicted of speeding, (presuming he/she was), You answer yes. Then under oath please tell this court were you also speeding as the video seems to show? Even if you think you were doing 5 km over, the honest answer is yes, I was speeding. Point, game, match to the crown.
Not saying you would be convicted just demonstrating to you that there is MUCH to consider BEFORE you offer video evidence to the crown and to the court. Just as the crown has to disclose their evidence against you, if you intend to introduce the video then it must be disclosed and a full copy given to the crown for their review. So as Grey ghost says make sure the entire video hows you riding properly not speeding nor stunting in ANY manner. It truly can be a double edged sword.
Be very careful with your video and letting the courts know of it's existence. I don't know what the rules are wrt them requesting a full, unedited copy of what you have. I am sure others may have been through this before.
If your video shows you speeding (even if it is just 1 km/h over, not the 26 the officer said), you are guilty of speeding which is what you were charged with.
If they manage to obtain the full video, is there anything else they could charge you with? I think the camera was on a *** minute loop and the beginning of the data you have was about 30 seconds prior to the officer seeing you and you shut the camera off before pulling back onto the street (wink wink nudge nudge).
