A 17-year-old boy was arrested on suspicion of affray following a police helicopter search in Hemel Hempstead yesterday afternoon (Tuesday).
Officers were called at 1.59pm yesterday to Montgomery Avenue, Hemel Hempstead, to reports of an armed male making threats to a woman outside an address.
After a search was carried out by officers, a police helicopter and a dog unit, the teenage suspect was arrested on suspicion of affray.
He remains in police custody at this time.
A police spokesman said: "We were looking for a male who was reported to have made verbal threats towards a woman. He was alleged to have been armed.
"This was an isolated incident involving parties known to each other and no-one was injured.
"Please be reassured that we always ensure our policing response is proportionate and is assessed against threat, harm and risk."