Act 3 scene 5....

Dogberry's character - comic relief - A part in the play where you are distracted from the seriousness within the scene. His character distracts the auidience from the confrentation that is about to arise at the wedding. His character is now dicieving the audience and not just each other.

"marry sir, i would  have some confidence with you that decerns you nearly"

"marry sir, i would have some concerns with you that decerns you nearly"

"Goodman verges, sir, speaks a little off the matter: an old man, sir, and his wits are not so sharp as, god help, i would desire they were;"

-Trying to say he is thick however he is actually calling him smart

"Comaparisons are odorous; palabras, neighbor verges"
"Comparisons are ardurous; palabras, neighbor verges"

What does Dogeberry want above all to communicate to Leonato in this scene? why? How does this impede the discovery of the crime against Hero?

Dogeberry attempts to communicate to Leonato that he has caught two 'suspicious people' , he does this as he wants to better himself and prove to Leonato he is a good constable.While attempting to impress Leonato, Dogbery uses many malapropisms, in doing this Leonato can see that he is talking to the village idiot.
This impedes the discovery of the crime Claudio is planning as because he has arrested the two men they cannot tell him of the crime thats is later going to come to light.

What is the great honor which Leonato bestows upon Dogberry and Verges?

 The great honor he bestows upon the two is he allows them to examine the two 'suspicious people' alone without him being there.