A man wielding a pick axe handle damaged four vehicles - including two police vehicles - in Chesham this week.
At around 9.50pm on Tuesday (April 11), a man was seen walking on Broad Street towards the police station.
He entered the rear yard of the station armed with what officers believe was a handle of a pick axe and damaged the windscreen of a police Vauxhall Corsa before approaching a police Vauxhall Vivaro van parked in a bay.
He struck the windscreen of the van twice before walking towards a white Ford Fiesta parked nearby and hit the vehicle twice to the windscreen.
He then moved onto a red Hyundai parked in the next bay along and damaged the windscreen.
The man then left via the back yard of the station and was seen walking along Broad Street, towards Higham Road.
He was spotted at around 9.50pm near to the junction of Higham Road.
Investigating officers are calling on anyone who may have seen the attack, or who may have witnessed a white Flatbed vehicle travelling from the Berkhamstead Road towards the junction of Higham Road.
The vehicle is believed to have driven past the police station towards the town centre, and officers think the occupants may have vital information which could help the investigation.
PC Scott Lear, based at Amersham Police Station, said: “A thorough investigation is now underway and we are appealing directly to the community to help us bring the person responsible to justice.
“Damaging police vehicles is a mindless act which puts them temporarily out of action whilst they undergo repairs.
“We are determined to locate and identify the offender."
If you have any information that could help the investigation, call the Thames Valley Police 24-hour enquiry centre on 101, quoting incident reference 43170105707.