Police would like to speak with this man in connection with a series of serious offences in Bradford.
In the latest incident on April 15, a 56-year-old man was subject to an assault at flats on Walmer Villas in Manningham.
The suspect was described as Asian, 6 feet tall, of large build with a dark beard and wearing traditional Muslim clothing.
Detectives believe the attack is also connected to a robbery which occurred on January 28, 2013, on Carlisle Place in Manningham.
On that occasion, a man of the same description forced his way into the home of an 80-year-old man as he was opening the front door.
Again, an assault took place and the suspect left the property with a number of items, before locking the victim in his own house.
Detective Sergeant Martin Milner of Bradford South CID said: “These were despicable acts on vulnerable members of the community.
“Thankfully neither of the victims were badly hurt, however, both men were left extremely shocked and traumatised by the ordeal.
“There is a distinct possibility that these two incidents are linked to three other similar offences which took place last year.
“In July and August 2012, elderly people were targeted at Mount Royds and Manningham Lane, with strikingly similar circumstances.
“It is likely that the same individual is behind these recent attacks and it is vital that we quickly apprehend them.
“A considerable amount of investigative work has been conducted and enquiries remain ongoing to locate the individual responsible.
“We do, however; need the support of the community to help us to identify this man and I am confident someone locally knows who he is.
“Our CCTV enquiries remain ongoing and Neighbourhood Police patrols are focused on the area, with officers speaking to residents.
“I would urge anyone with information about any of these incidents to come forward immediately and let us know.
“Likewise, if you believe you know the suspect, I would ask you call the non emergency number 101 or Crimestoppers in confidence on 0800 555 111.”