a high observation tower at the corner of a modern prison at magilligan point in county londonderry in northern ireland

alarm architecture barbed barriers bars behind blocks blue center clouds corner corrugated county crime dangerous desk detained detainees detention deterrent electric entrance entry equipment fences gaol gate gateway glass guard guarded high incarceration ireland limavady londonderry look magilligan mens metal modern northern observation out point points political post prison prisoners punishment rehabilitation remote secure security service sheet sirens sky strand structure system tinted tower towers utility walls watchtower wings wire