Hi Hicham.
Finally got some down time to reply.
I joined the British Police Force in Dec 1985 after an 8 yr career in the Civil Service.
Began running in 1981 mainly in distance events, 10k to the marathon.
Started track in @1983/84 as I was disillusioned with the marathon after a PB of 2.37 from 2.40.
Decided to join the Police for a new challenge in life.
Had a home interview with an Inspector who was a keen runner himself who knew of me locally (in the running world not underworld !)
Passed that of course, the main interview day consisted of the 1.5 mile run plus gym tests, press ups sit ups etc.
Blew the run in 7.04 (think it was a bit short) and then encouraged the other candidates which impressed the panel.
Got the job.
The most difficult period was the initial training as I couldn't put in the sessions due the timetable of the course, ie dinner straight after class, and then revision study. Ended up missing meals, or having the left overs following training later.
After passing the course, I managed to get my fitness back.
Found the optimum times to train hard was in the morning before the afternoon shift which started at 2pm - 10pm.
Then in the late afternoon/early evening following the night shift which was from 10pm - 7am, which I put down to the body having a quality sleep.
Ran some of my best times then.
Training/racing after the early shifts 7am - 2pm always seemed more miss than hit as there was tensions from the job and tiredness carrying over, so generally I trained easier on those days and harder on the rest days.
Also, noted that training/racing on the 2nd rest day seemed more difficult than the first.
I put this down to the body clock re-adjusting itself from what went before.
It is almost that you are in constant jet lag when on shifts.
Last 8yrs of service was office based, so shifts were day based.
Didn't always feel great on these so did the quality in the late morning when I could.
1993 PR'd my 800 to 1.59.8 in the National Police Champs, always my times were peppered around the 2.xx mark.
2003 competed at the WPFG in Barcelona's Olympic Stadium, got 4th in the 800, 2.07.05, and 40 mins after a gruesome 1500(4.28) in 33 Degrees won a Silver medal in the 400 in 57.3.
Have also gained UK National medals and a European Bronze in the 800.
Retired on the 10th June 2014, which I scheduled as being on the Anniversary of Mr Coe's WR 1.41.73 in 1981 !
A big highlight of mine was in 1990, when I won the same trophy as Seb Coe in a grass track mile in 4.34 to his 4.09 back in 1976.
Still competing now as M55, just ran a 61.48 400 and 28.34 200 at the weekend, quickest times for a couple of years.
In some ways my running career got in the way of personal ambition and sometimes family life, but it was an excellent way to distress after dealing with suicides/homicides.
My advice is to try and make the best use of your free time if you go down the Law enforcement route and the running will take care of itself.
My athletic career may have been affected by the work life balance of the job, but I know of an International athlete who joined the Police and competed at the Commonwealth Games and ran a 1.45.7 800m !
Good luck in what you choose to do.
Kev