الجلمة: منظر عام للقرية من مركز شرطة قريب. شباط 1948

According to Ed Horne's history of the PP, "A Job Well Done," this camp site was first used by German units in WW I. In WW II it was used by the ATS then given over to the PP Mobile Force in 1944 as a base and training depot. PPMF had to be wound up in 1946 because so many UK constables had not had leave since 1939 and the PPMF men were needed to fill other slots. The Jenin camp continued to be the training base for UK personnel the 1000 conscript National Servicemen who served in 1946 -48 till 1947 while Palestine Arab and Jewish police continued training at Mt Scopus in North Jerusalem.
I have see photos of German air force personnel in WW I using transport of their own making along the Jezreel railway - a rail "flat" with aero engine and pusher prop - and there is or was a stone small "pylon" monument to German WW I presence in the area.
Given in 1948 the Jordanian government established the original refugee camps on existing government sites: army and jail labour camps; it is probable that all the above are now under the buildiing development still labelled Jenin Refugee Camp.