18th March 2009 - 14:31 Leaves work Claudia leaves her place of work at Goodricke College, York, where she works as a chef. CCTV footage shows her walking casually through the grounds.
18th March 2009 - 14:47 Posts something Claudia is seen on CCTV posting something at a postbox on Melrose Avenue.
18th March 2009 - 15:05 Last seen She is seen at the junction of Heworth Road and East Parade walking back towards her home on Heworth Road. CCTV shows her leaving work and walking home around this time.
18th March 2009 - 19:27 Speaks to her father Claudia telephones her father from home and they speak for a while.
18th March 2009 - 20:04 Speaks to her mother Claudia talks to her mum on the phone.
18th March 2009 - 20:08 Texting friends For around twenty minutes, Claudia exchanges various text messages with friends. Their content betrays nothing unusual.
18th March 2009 - 21:12 Receives last text message Claudia's phone receives a text message from a friend who is working at a bar in Cyprus. She never replies.
19th March 2009 - 05:35 A woman and a man seen together near Claudia' house A cyclist sees a man and a woman talking on Melrosegate Bridge near Claudia's house. He recalls that the man was smoking a cigarette in his left hand, and is referred to in police appeals as the "left handed smoker." He is described as about 5ft 6in tall with a skinny build, wearing a dark-coloured hooded top with the hood up, and dark-coloured combat trousers with pockets on the side. The woman is smaller than the man and has mousey brown hair. She is wearing a blue, waist-length jacket with buttons and pockets.
19th March 2009 - 05:42 Ford Focus seen braking by Claudia's house A light coloured, old model Ford Focus is captured on CCTV braking suddenly directly opposite Claudia's house. The car's owner is never traced, but police will later appeal for them to come forward in case they saw anything that caused them to brake.
23rd March 2015 Man arrested on suspicion of murder Police arrest a man in his 50s on suspicion of murder in connection with Miss Lawrence's disappearance. He is not named, but released on bail while police continue their enquiries.
22nd April 2015 Arrests made North Yorkshire police announce the arrest of three men on suspicion of the murder, asking the press not to reveal details of their identities. They are all said to be in their 50s, and living in the York area.