Never Forget A Face - S11.E53

Croft investigates the brutal assault of a prostitute, but reaches for a high-tech solution when the only witness to the attack cannot identify the assailant. Meanwhile, Jarvis is called when a man with a face wound causes a disturbance in a launderette. As he finally catches up with the man and escorts the man back to Sun Hill, it turns out that his victim is none other than the suspect that Croft is hunting in the assault case.