The next step for the officer who observed the bag of marijuana and the bong would be to enter the house. The reason for this is that there are many exceptions where a police officer can enter a home, without a warrant or without consent. The first would be if the items were in plain sight: that is, if an officer is on your property, in this case for a domestic call, or if the officers are there for a valid reason and the officer sees marijuana or any criminal items in in plain sight or in plain sight (table, coffee table, kitchen table, counters) then the search becomes valid and the thing can be seized as evidence and the evidence cannot be suppressed. The next exception would be the open field doctrine: familiar to the view of pain; but somehow different. If a marijuana plant is discovered in an "open field" (almost in plain view) the owner or owners have no privacy exception, even if it can be shown that the officer was trespassing when the "items" were found. This is because the Supreme Court says that all citizens do not have a "reasonable" exception to open-field privacy since the 4th Amendment protects only the person, home, documents and does not extend to any open field. Also, exigent circumstances: is if a police officer responds to a domestic servant