Can you please help me check these sentences. Thank you for your help

1)Robotic planes are useful because they can fit in small places where humans cannot enter and scan areas to find possible survivors.
2) They are quick and small so they can manage to work in areas with difficult access like places when earthquakes or other natural disasters took place.
3) They can be launched in less than 15 minutes what makes the process faster. The technology has improved a lot helping people with disabilities.
4) Forensic artists can analyze fingerprints that were on the crime scene and find potential criminals or they can examine the DNA of the blood that they found on the scene.
5) This kind of technique is much more accurate than analyzing fingerprints since it cannot be changed by surgery.
6) Forensic artists are required to be skilled on drawing since they should (?) make a good drawing to help the police to catch the criminal.
7) Second, they have to be good at (NOT ON) interviewing witnesses and make them remember some details of the crime and the crime scene.

Can you please help me check these sentences. Thank you for your help

1)Robotic planes are useful because they can fit in small places where humans cannot enter and scan areas to find possible survivors.
2) They are quick and small so they can manage to work in areas with difficult access like places when earthquakes or other natural disasters took place.
3) They can be launched in less than 15 minutes what makes the process faster. The technology has improved a lot helping people with disabilities.
4) Forensic artists can analyze fingerprints that were on the crime scene and find potential criminals or they can examine the DNA of the blood that they found on the scene.
5) This kind of technique is much more accurate than analyzing fingerprints since it cannot be changed by surgery.
6) Forensic artists are required to be skilled on drawing since they should (?) make a good drawing to help the police to catch the criminal.
7) Second, they have to be good at (NOT ON) interviewing witnesses and make them remember some details of the crime and the crime scene.

1) OK

2) They are quick and small so they can work in areas difficult to access, such as places where earthquakes or other natural disasters have taken place.

3) They can be launched in less than 15 minutes what makes the process faster. The technology to help people with disabilities has improved a great deal.

4) Forensic artists can analyze fingerprints from the crime scene and find potential criminals, or they can examine DNA found at the scene.

5) This technique <~~which technique? is much more accurate than analyzing fingerprints since it cannot be changed by surgery.

6) Forensic artists are required to be skilled in drawing since they are able to make a good drawing to help the police to catch the criminal.

7) Second, they have to be good at interviewing witnesses and helping them remember some details of the crime and the crime scene.