imprisonment, these police officers know. they had been trained to know what probable cause is to justify a legal arrest. they had a reasonable idea to pursue mr. gray and to stop to further an investigation. but then when they discovered the knife on him, they should have known that it wasn't an illegal knife. they should have known that it wasn't a switch blade as it was earlier reported by the fraternal order of police attorney. they should have known that it wasn't a spring loaded knife and that it was legal according to maryland law. but they decided to arrest him and to take him into custody anyway and that's the reason for the charges. i mean, that's probable cause for her charging them, marilyn mosby charging them with that particular charge of false im