Breathalyser inventor Dr Tom Parry Jones remembered
The Anglesey-born inventor of the electronic breathalyser has had a plaque unveiled in his memory.
The ceremony was carried out by Dr Tom Parry Jones's widow at the official opening of a new police station in Llangefni.
The Bangor University graduate, from Menai Bridge, died in January aged 77.
He established Lion Laboratories to manufacture and market the breathalyser worldwide, and was awarded an OBE for his work.
He also set up the Dr Tom Parry Jones Fund to encourage young people into careers in science and technology.
The fund is used to stage a science festival which promotes science and entrepreneurship for young people.
The new police station is on the Llangefni Industrial Estate.
It will be the base for police officers covering the Gaerwen and Valley areas, as well as the Wales Probation Trust team.