A person that is implicated is involved in some matter.
To be implicated means to show to be also involved, usually in an incriminating manner; to show (someone) to be involved in a crime.
Some synonyms of the word implicated which suggest that someone was enganged in certain criminal matter include: incriminate, compromise; involve, connect, embroil, enmesh, ensnare; expose; archaicinculpate.
If someone or something is implicated in a crime or a bad situation, they are involved in it or responsible for it.