Abba Kyari, head of the intelligence response team of the inspector-general of police, recently led his men to the spot where three of their colleagues and a civilian were killed by some soldiers.
The victims were returning to Jalingo, the state capital after an undercover operation that led to the arrest of Hamisu Bala Wadume, a suspected kidnap kingpin.
The incident had sparked an outrage, with heated exchanges between the army and police in the media.
The defence headquarters later set up a panel to probe the incident. This followed a directive from President Muhammadu Buhari.
Kyari shared pictures of the visit to the scene on Facebook. Below are some of the pictures:
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