Officers are appealing for a teenager to come forward after a car was set alight in Douglas last week.
The incident happened on Wednesday (April 8) in Saddle Road.
Officers investigating the blaze are asking for a boy aged between 15 and 17 to contact them after he hired a taxi to Lord Street in Douglas shortly before 1am the same day.
He is described as being 5' 6" tall, of quite stocky build with neatly cut short, light mousey-blonde hair which may have been "streaked".
He wore a brown and grey crew neck jumper and jeans.
Detectives say he's not thought to be involved in the fire, but may be a vital witness.
If you know him, or have any information on the incident, you can contact Onchan Police Station on 675190 or the anonymous Crimestoppers number, 088 555 111.
Researching your Manx family history can be a very interesting and rewarding hobby. Trace your roots in the Isle of Man with our helpful of guide.
