be mixed up in
• be involved in (something regarded as dubious or dishonest).
• "Steve was mixed up in an insurance swindle"
Similar:
involved in,
embroiled in,
entangled in,
drawn into,
caught up in,
a party to,
be mixed up with
• be associated with (someone unsuitable or unreliable).
• "he was mixed up with some rival gangsters"
