There must be a uniting force among them so that at any point one agency must not be away from what the other is doing to avoid not only duplication of duty but also to be on the alert based on information passed across various formations.
To joinhand must dey among dem so dat one side gocomeot ahnd from wetin d other side dey do to avoid to dey two work and to shine eyes put information wey dem sendcome from every angle.