I forgot to add the following sentences. Thank you very much for the cooperation.
1) They can remember details such as the criminal's hairstyle, tattoos or scars.
2) The best method to catch a criminal is the DNA identification.
Robots can provide information about roads’ situation. They are helpful with disabled people.
3) They can check blood type (a suspect’s blood type/ a blood type/blood types are all possible?), teeth or look at dental records.
4) Children can build remote-controlled robot vehicles. They fight against one another until one wins.
5) With DNA (through DNA identification, thanks to DNA identification?? are possible) scientists can catch criminals.
6) People have different DNAs (or a different DNA) which can't be chaanged.
They are useful with/helpful with (are they both possible?) people with disabilities.
7)Thanks to their drawing skills they can help people remember things such as tattoos, hairstyles and scars.
8) They have to listen to the witnesses' descriptions.
They can think of details that will be helpful to catch the criminal.
1) They can remember details such as the criminal's hairstyle, tattoos, or scars.
2) The best method to catch a criminal is by means of DNA identification.
Robots can provide information about road situations. They are also helpful for disabled people.
3) They can check a suspect’s blood type (a blood type/blood types are all possible), teeth, or look at dental records.
4) Children can build remote-controlled robot vehicles. They fight against one another until one wins.
5) With DNA (through DNA identification, thanks to DNA identification?? are possible -- yes), scientists can catch criminals.
6) People have different DNA structures which can't be chaanged.
http://www.blc.arizona.edu/molecular_graphics/dna_structure/dna_tutorial.html
They are useful/helpful for people with disabilities.
7)Thanks to their drawing skills, forensic artists can help people remember things such as tattoos, hairstyles, and scars.
8) OK