I would agree with the attorney above. There is always a possibilty of getting your charge reduced. I used to be a prosecutor and depending on the facts of the case and the strengths and weaknesses I would sometimes reduce this type of charge but it would be better if you have an attorney represent you because most likely the prosecution won't reduced for you unless you have an attorney.
Under the laws of the State of Washington, the prosecution doesn't have to prove that you didn't know that it was there. They only have to prove that you were in possession of the meth. You are the one that have to prove by a preponderance of the evidence that you didn't know it was there.
Usually a Canadian ticket will not show up on the Washington DOL computer system because it is an out of country ticket. During my experience as a prosecutor I never saw an out of country traffic ticket on somebody's record. The Canadian Police will not report your ticket to the Washington DOL. The Washington Court will not know unless you self report your Canadian ticket.
It would depend on what the police report say and what the witness say in the police report. Usually police do not arrest someone for burglary in the second degree based on the facts stated above. Has this person been charged?
Under the laws of the State of Washington, a police officer has probable cause to arrest you and search the car if he can smell the odor of marijuana coming from your car. He has to be trained in marijuana odor recognition and most cops are. Now whether they can prove that the marijuana is yours or not is a different thing.
No, you will not be assisting a fugitive. You do not have a responsibility to turn in people with a warrant. You might want to tell her to go to court and take care of the warrant so she doesn't get arrested at an inconvenient time or place.
It is always worth contesting your ticket. No, it doesn't necessarily void the ticket if the officer did not filled it out completely. Under the court rules there are necessary information that the officer needs to fill out. Without looking at your ticket an attorney wouldn't be able to tell you if it's incomplete or not. There also might be some other issues an attorney might be able to tell you if something on your ticket is missing also. I would contest if I were you.