What are you talking about?
Yes it is constitutional, the police searched his home without a warrant while he was not in the state on a suspicion that he had a meth lab in his home. They found a ghost AK-47 with bloody fingerprints in his home. That is illegal and a felony but because they searched his home with no warrant or a case being built to find that AK-47 the man had his rights to not be charged.
There are 24 main local jurisdictions in Maryland