[Here briefly focus on sample leave application for security officer or security guard from duty or job for few days. You can follow these sample as Email letter. You can modify these formats as your requirement.]
Date…
The Managing Director,
Institute Name…
Institute Address…
Sub: Request Letter for Leave
Dear Sir,
I beg to say that I am performing my duty as a security guard in your office since 20xx. As you know my parental home is in (area/region name). My wife had an accident there and she is seriously injured. (State your actual cause and situation). I need to go there. That is why I need to take leave for five days, (as your requirement) from (date) to (date). I shall be humbly thankful to you for this great act. Thank you,
Name…
Job Designation…
Contact no…
Signature.