What is the test for reasonable and probable grounds to arrest?

[29] As stated in Storrey v. The Queen (1990), 1990 CanLII 125 (SCC), 53 C.C.C. (3d) 316 (S.C.C.) at page 324, in the context of reasonable and probable grounds to arrest, “It is not sufficient for the police officer to personally believe that he or she has reasonable and probable grounds to make an arrest. Rather, it must be objectively established that those reasonable and probable grounds did in fact exist. That is to say a reasonable person standing in the shoes of the police officer, would have believed that reasonable and probable grounds existed to make the arrest.” … “In summary then, the Criminal Code requires that an arresting officer must subjectively have reasonable and probable grounds on which to base the arrest. Those grounds must, in addition, be justifiable from an objective point of view. That is to say, a reasonable person placed in the position of the officer must be able to conclude that there were indeed reasonable and probable grounds for the arrest. On the other hand, the police need not demonstrate anything more than reasonable and probable grounds...”