A police sergeant stabbed and slashed as he tried to make an arrest has returned to work.
The unnamed officer, who was injured in Eastbourne, East Sussex on Sunday, is on restricted duties at Sussex Police HQ in Lewes.
He was released from hospital after having stitches to a minor wound in his arm and is expected to be back on normal duties on Tuesday.
A 49-year-old Bulgarian man has been detained under the Mental Health Act.
A spokeswoman said the police inquiry was continuing and officers were working closely with East Sussex social services.
Eastbourne MP Nigel Waterson said he was waiting for more information about the incident.
"I shall certainly be interested in this assailant's immigration status, and as to whether he had any history of mental illness," he said.
"It is a timely reminder of the risks run every day by our police officers."
Sussex Police said they would not be naming the officer as he sometimes worked under cover.
He was saved from serious injury by his stab vest.
The incident happened following reports a suspect had fled after making threats with a knife in Longstone Road.
The man produced two kitchen knives and was eventually subdued using a Taser device.