Hi Maja, If you like who dunnits, then I can heartily recommend P.J. Tracy's books. P.J. Tracy is a mother-daughter team - Patricia J. and Traci Lambrecht.
Some praise for their books are :
A furiously paced tale - Library Journal
A mix of high tech and street smart police work... an enticing read - People
A fast paced and intriguingly plotted mystery - The Boston Globe
A thriller to remember - New York Daily News
Not only original but genuinely funny. The characters are fresh, the plot intricate, and the ending is absolute dynamite.... a truly satisfying, terrific read! - Nevada Barr

This wonderful team have written:
Monkeewrench
Dead Run
Snow Blind
Live Bait

I haven't read their 4th, Live Bait yet.... will be startign that ere long. Already looking forward to their 5th.... 6th.... 7th..... books.

It always concerns the same Minneapolis police team, with teh same main characters, and the Monkeewrench team - a small group of highly eccentric, brilliant IT specialists who each time anew end up working closely with the police. The characters are brilliant, and so original!!!
Cannot advice it highly enough!
One word of warning though! Read the books in sequence, starting with Monkeewrench.

ENJOY!!!