[Sherlock]

By deduction, LE would not want a sketch made because they knew the kidnapper, Ed comes along later and has the sketch made against the plan of LE because he wants to know but plays along with their game not to release it. He probably still does not know who the kidnapper is.

[Neenah]

By deduction, LE would not want a sketch made because they knew the kidnapper,

They do? It is almost 2 months now, they know the kidnapper, but he is not arrested?